Rickubis Bird Page #5: Miscellaneous Birds
This page was born
01/27/2010. Rickubis designed it. (such as it is.)
Last update: 2/15/2025
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this page copyright ©2002-2023 Richard M. Dashnau
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That's me on a trail at
Brazos Bend State Park (BBSP), sometime in 2004. This page will
collect images and videos of various birds that I haven't
collected onto their own pages.
At
Brazos Bend State Park 10/29/2023
I was at the East end of the Spillway Bridge. Another volunteer was
talking with some visitors who had come
up looking for bird called an "ani". Since I was unfamiliar with
the name, I listened while they talked about the bird. One of
those folks found one in a tree about 50 yards
away. At first glance, the Ani resembled a Grackle.
The Ani was about the same size as a Grackle, black, and had long tail
feathers. If the others hadn't pointed it out,
I would have never noticed the Ani--since Boat-tailed Grackles and
Great-tailed Grackles are fairly common in the park.
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But, on
closer view, the Ani's face is a LOT different--it has a big tall,
humped beak. This ani's beak had grooves along the side-so it's a
Groove-billed Ani
(Crotophaga sulcirostris).
I noticed rough feathers on the front of the throat; and there is a
delicate tracery of light markings on the head, down the back, and
around the upper chest. The rest of the body covering is mostly
black, but I also didn't see that iridescent blue highlight that
Grackles' feathers show in bright light.
While I watched the Ani through the camera, another one landed next to
it. After shooting some pictures and video I went to check on
the mother gator and pod which
was only about 20 yards further down. As I have over the
previous month, I mostly stayed near the pod. While I was there,
the pair of Anis moved through the trees
in front of me, and then hunted a bit in the cover. So I shot
some more pictures and video of them. I lost sight of them when they
moved further into cover.The
video of their visit can be seen here.
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The
Anis called a few times, but because of the wind it's not captured on
my video. The call is nothing like the harsh sounds made by
Grackles. So, I went back to the
pod. But I continued thinking about the Anis, and read a
bit about them. While I had the impression that their appearance in
BBSP was rare, many sources I read count
southern Texas as part of the normal range of Anis. Most of
their range is Central America and Northern South America.
I found that Anis are in the same family as Cuckoos and
Roadrunners--family Cuculidae. Their feet are zygodactylous; which
means their toes are turned so they form
2 pairs (2 toes front, 2 toes back) which is helpful for perching and
climbing. This is why we can see only
two toes grasping the branch in front of the bird.
Woodpeckers,
parrots and owls also have such an arrangement. Anis mostly eat
insects, but will also eat other small prey-such as lizards; and
sometimes eat small fruit.
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I keep
thinking about how I'd have easily mistaken the Ani for a Grackle,
since on some days, Grackles are part of the usual scenery. And, that
today is Halloween, when
things are sometimes not what they seem. I have further
noticed that the huge beak and lightly-traced markings on the head and
chest of an Ani could be an effect
duplicated by a bird-sized full-head mask...a mask that could be
placed over the head of an "ordinary" Grackle! What's more
likely? That an Ani has turned up in
BBSP some miles out of its normal range--or that a couple Grackles
have decided to dress up for Halloween? Ha ha ha! I'm
joking. Of course it's the second choice.
The Crows are probably in on the masquerade.
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On 03/19/2023
A
cold front had passed through recently. That morning, the
thermometer in my car showed 47°F.
I didn't bother trying to record the air temperature on
the
trail because I was trying a new piece of equipment that I thought
would give me related data. I can say that it felt REALLY
cold out there. Various
species
of Swallows were
foraging at the various lakes in the park. The first ones I saw
were at 40 Acre Lake, and then I encountered more of them near the
Southwest corner of Elm Lake, near the
spot where the Limpkin was hunting (that will be below this bit).
These images are all frame grabs from the video clips which I
edited together into
this film (filmed
at high framerate, slowed 8x). Most of the birds I
saw seemed to be Barn Swallows and Tree Swallows. A
mixed flock of these Swallows flying together as
they hunt is a wonderful sight, and many park visitors commented
about them that morning.
Barn Swallows 40Acre Lake
Barn
Swallow Elm Lake
Barn
Swallow Elm Lake
Tree Swallow Elm Lake
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Tree Swallow Elm Lake
03/06/2021(sunrise)
I was taking my dog Piper for
our 2-mile walk at sunrise.
I was surprised when a herd of Peafowl (Peacocks(males) and
Peahens(females)) appeared on one of the side streets.
(I'm going with "herd" instead of "flock" because they weren't flying.
If that's not correct...oh, well.) And, actually, a group of
Peacocks (Peafowl) is known as an "ostentation". That would be
appropriate as this
group strutted out. I held Piper back, and stopped to watch the
procession. I thought that they'd just pass by. They did not. They
walked towards us!
They're
watching
us.
They
passed by like a parade! Then
they watched Piper and I like we
were the parade. Piper
was amazed.
NOW what should I do? I figured that a group of birds would
approach a human and
a dog either to challenge them (maybe a fiesty
dominent male); or because they thought I had food.
I watched for signs of aggression, and when I didn't see any, I spoke
softly to the birds (after a quiet command to Piper to stay)--so they'd
recognize me as a human. I didn't want to
upset them for many reasons. I didn't want to trigger any
agression...but I also didn't want them to run into the main road behind
me. The group (I'm not going to type "ostentation"
repeatedly. Maybe I'll go with "muster"). finally did start poking
around the plants, so I continued past them. When I got to the
next curb I stopped to watch them again--and they
started following me. This would have been unfortunate. I
had no idea where the birds belonged, so I couldn't walk them home. I
didn't want them to follow me down the main road, either.
I spoke to them again, and told them I didn't have any "peacock food"
(HA HA HA). Then I stood still again. The birds finally lost
interest, and wandered back towards their street.
I think there were two kinds of Peafowl here. I think there were
Blue ("Indian" (Pavo cristatus)) and Green ("Java"(Pavo muticus))
with me this morning. By searching the internet, I
found that both species of Peafowl are in the same family as Pheasants
(Phasianadae). When at home in their usual habitat, both species
are generalist omnivores, and will eat fruits, seeds, insects,
small reptiles, plants--or apparently anything that they can find or
catch. I also read that those that have been made pets (as my visitors
must have been) will eat various varieties
of pet food. n I continued my walk with Piper. It was an
interesting change to our usually quiet walk. I took a few photos and
short video clips--holding the phone while walking a dog
is unnecessary distraction. The video(mp4) is at this link.
Oh,
great. Now they're following us.
I just wanted them off the road.
Piper and the birds eyeballing each
other.
The Peafowl finally understood I had no food.
01/16/2021 - 01/17/2021 While
I
was at Fiorenza Park North on January 16, I noticed some
photographers. They were interested in a flock of Cedar Waxwings
(Bombycilla cedrorum)
that were eating berries. I think the plants are Privets
(Ligustrum), either Chinese (L. sinense) or Glossy (L. lucidum). I am
not familiar with many bird species, but I can recognize a few.
I've always recognized Cedar Waxwings by the overall color, their crest,
their black eye mask, and
their bright yellow tail tips. This day, I wondered why they were
called *waxwings*
(feel free to laugh at this part of my story). The Waxwings would leave
the berries, then go back after about 15 minutes. An American
Robin (Turdus migratorius) kept chasing the Waxwings
off the berries. It eventuqlly left, allowing the Waxwings to eat in
peace. The 4 images below were taken on January 16, 2021.
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Up at the tree tops.
Recognizable as Waxwings
Crests on heads, masks, yellow
tails.
Grumpy Robin wouldn't share
breakfast.
After a little research, I saw
that a feature unique to this bird are red tips on some their secondary
flight feathers that look like dabs of red wax. It is actually a clear coating
over red pigment. Once I learned that, and saw it in some of my
images, I wondered what such an odd color or device might be for. After
all, other birds apparently
don't have them.
The remaining pictures below were taken on January 17, 2021. I
also filmed some video clips on the same day, and edited them together
into this 4 minute short
(mp4). The video
was filmed at different rates. It's a nice way to watch Cedar
Waxwings for a few minutes. Don't laugh too long about my lack of
knowledge about the "waxwing" description.
I looked into the "Cedar", and if I understand correctly, "Juniper
Waxwing" is a more precise name. That is, if Cedar Waxwings were named
because they like to eat Cedar Berries.
My research indicates that "Cedar" trees that produce these berries are
actually Junipers.
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After a number of search results came back with "function unknown", I
found this paper: "WHY ARE
WAXWINGS "WAXY"? DELAYED PLUMAGE MATURATION IN THE CEDAR WAXWING"
D. JAMES MOUNTJOY • AND RALEIGH J.
ROBERTSON Auk, Vol. 105 Jan. 1988 The
paper goes over a number of theories, and what their test results show
in relation to these theories.
There are some conclusions, but the
authors indicate that further studies would help clarify. Some
interesting points: 1) Both
males and females have the wax, so using the wax as a basis for
mate selection *based on sex* isn't valid. 2) Waxwings
are not born with these tips. They develop in size and number over time,
so can indicate the age of a bird. 3) Since
Waxwings generally
flock together mate selection using territorial competition isn't much
of a factor. 4) In their
study, mating couples were composed of pairs with the same number of wax
tips. Younger birds (wax
tips under a certain number) tended to pair; as those older (wax tips
over a certain number) tended to pair. 5) Older
pairs
= larger birds. The older pairs nested earlier and fledged earlier
than
the younger pairs. The older pairs ("alpha pairs" in the study) had higher breeding success than the
other pairs. So, one
conclusion was that Waxwings could use the red tip colors for mate
selection based on age.
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The
first 7 images here are a burst of photos I caught of one of the
Waxwings taking off.
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Red tips on display from below!
Red tips on display on folded wings
I also found this paper: "PHYSIOLOGICAL BASIS AND ECOLOGICAL
CONSEQUENCES OF SUGAR PREFERENCES IN CEDAR WAXWINGS" Martinez
del Rio, Karasov, Levey
The Auk 106 January 1989 I
just thought this an interesting description of the species:
"We studied the sugar preferences of
the Cedar Waxwing ( Bornbycilla cedrorum) , one of the most heavily
frugivorous birds in temperate North
America (Martin et al. 1951), and analyzed
the influence of taste and postingestional factors on these
preferences." This
study indicates that Waxwings can distinguish sweet from non-sweet; and
also possibly and tell sugars apart.
This might be why
they pick up some of the Privet berries and drop them in some of the
video clips. They're testing for sweetness. Here's a link to that video again(mp4).
12/25/2020 Another
visit to Fiorenza Park. Today, I noticed this Belted Kingfisher
(Ceryle alcyon) hunting from one of the trees near the low bridge.
I usually don't get a chance to capture video
of one as it hunts, but I was able to catch a couple of clips
before the Kingfisher flew off. I got one dive cycle at
60fps; and part of another cycle at 480fps. The series of
images below are frame
grabs from the video
I edited together from the clips (mp4). Watch the video to
see the breakdown.
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Belted Kingfisher (Ceryle alcyon) watching
Free-falling like a bullet after
the glide.
Just before hitting the water--beak is
slightly open.
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Contact! Hitting the water---.
--the wings opened. For braking, to prevent
diving to deep? As the water settles, Kinfisher's
head popped up
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Kingfisher pops out of the water! How did it move?
As the bird left the water, the
wings were folded... ...and the wings were pulled over
the back, for first pump.
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Wings open
and extend to start the first downbeat Downbeat continued,
and the Kingfisher continued rising. On completed
downstroke, wings are folded for upsweep
12/29/2019
I was able to capture some high-speed video of one of the
Vermilion Flycatchers (Pyrocephalus rubinus) that have been
staying at the park over the winter.
I still haven't been able to get very close, but I could crop
the video into something useable. I've been taking some time to
study how birds use their wings--as I've been inspired by
what the high-speed video clips reveal. The report which I've
found most useful is this: Aerodynamics of bird flight by
Rudolf Dvor�k 2016 (link
here). Most of the following comments are inspired
by that report. Many of us have learned that birds' wings
are airfoils. In fact, the shape of bird wings is what guided
humans to shape the wings on airplanes. Although the airfoil
curves of
the birds' wings help it to fly, the biggest factors making
their flight possible is that those wings are flexible;
and that they move. If we look at the images below-frame grabs
from
the
cropped video, we can see some of these factors at work.
The first group of images show the take off into accelerating
flight. At the end of this phase, the flycatcher pulled in
its wings and made a "teardrop shape" of its entire body!
This streamlined it for even more brief acceleration.
Feathers "closed" wings extended for lift and thrust.
For lifting, wing tips fold in, feathers "open" to let
air through. Wings
at full lift, they're extended for next down stroke.
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Next downstroke,
with slight tilt--low leading edge.
Pushing
down generates forward thrust, and increases lift from wings.
Bring the wings all the way down for full propulsion.
The vermilion also landed back on
the same twig, and I caught that too. We can look at the images
below to see how the wings were used a bit differently to slow
the bird .
Many of the
movements look the same(after all it's the same wings doing the
movements) , but there are subtle differences. . Most
of the following comments areinspired by Aerodynamics
of
bird flight by
Rudolf Dvor�k 2016.
(link
here)
The braking maneuvers stopped all the forward momentum of the
flycather, allowing it to land gently on the tip of a twig.
Again...here is the link to that video.
Most
feathers
"closed", wings extended for braking.
For lifting, wing tips fold in, feathers "open to let air
through. Wings at full
folded (bent?) position.
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With wings bent,
they are lifted above the back . Opened and Pushing
down
for more braking. Notice open feathers at wing tips, allowing
air to pass through there.
02/03/2019
I watched some Swamp Sparrows (Melospiza georgiana) foraging at
BBSP. I shot a few pictures, and I noticed that did an odd
"skip" step from time to time. I decided to shoot some
high framerate video so I could see what the Sparrows were
doing. I found references to Sparrows doing a
"double-scratch" behavior as they look for food. My first
reference, Sibley Guide to Bird
Life and Behavior (page 524) gave an interesting description on
how the "double-scratch" was performed. However, when I
watched my footage, which enabled a 16x slower view, I saw
that
something different was going on (if the Sparrows were doing the
"double scratch). The series of images below show a single
instance of this behavior, and the anigif at the end shows the
series
together.
This movement started by a slight dip as the Sparrow set its
legs and grabs with its toes, then a quick push to the rear.
Once the bird is moving backwards, it then pulls its legs
back towards the
body. Since the Sparrow is moving backwards this adds
force to the 17-gram mass of the Sparrow's body. This
jerks whatever the Sparrow has grabbed backwards. Momentum
expended, the
Sparrow ends up near to, and a little behind of, where it had
started. Then, it looks down to see what it might have
uncovered. After a brief search, the Sparrow grabs whatever it
finds with its beak,
moves on, or clutches another clump and pulls again. The images
below are frame grabs from this
video clip, the video was shot at 60 fps and at
480fps.
As I inspected this, I began thinking about how few animal
species are "obligate" bipeds. That is, animals that have
adapted to that they primarily walk on two legs...because that
is the only way they
can walk efficiently. It appears that only birds and...humans
are bipedal by nature; although there are a few exceptions among
other species. But birds only have two legs that they can
use for
walking...and for grasping. Their two front limbs has lost
almost all ability for grasping or manipulating because they
have become wings.
( I say "almost all" because there are always exceptions I don't
know about.) So, prey and object manipulation is either done
with their beaks, or, with their feet--or by a combination of
both.
I thought pulling up material by grasping with both feet and
then jerking backwards with their body is quite amazing because
of the complex physical coordination it requires.
They are yanking backwards with both feet-without using their
wings at all-and they aren't bracing against anything to apply
force, And...they don't fall down!
After I wrote that last two sentences, I started thinking about
the movements that the Sparrow had done, and I thought that I
would try to do them myself. So, I designed a simple experiment
where I would
try to move an obstacle that was covering food by using my feet
and the body movements performed by the Sparrow. I filmed this
experiment, and I believe that I successfully copied what the
Sparrow
had done. The video clips showing my experiment can be seen here.
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Grabs with toes, and sinks just a little bit.....
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Pushes
backwards and fully extends the legs as body moves back.....
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Pulls the
legs and feet in, which brakes the body mass, but also pulls at the
substrate grabbed by the toes; stops going backwards, then lean
forward....
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Look around to see if any morsels were
uncovered, then maybe a half-step to grab again.....
11/18/2018
Quick 480fps video clip of a Blue-Winged Teal doing
a vertical takeoff from water (slowed 8x). Blue-winged Teal taking off in slowmo
04/08/2018
The
weather had gotten cool, and as the air warmed, flocks of
Swallows began flying. I found myself in the midst of them. So,
I filmed some video. Video clip is here. A framegrab
from the video is below.
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09/16/2017 and
10/08/2017 I helped a friend repair some damage
in the emu pen, and shot a few video clips. The links are here
(maybe I'll post some frames here).
Emu
walking filmed at 120fps wmv 10/08/2017
Minor repair of shelter with emus vid mp4 09/16/2017
01/08/2017 Today,
I was able to capture some high-speed video (480 fps) of some
Blue Gray Gnatcatchers (polioptila caerulea) as they foraged
among the trees. According to The Sibley Guide of
Bird Behavior, these birds eat small insects and spiders.
Sometimes, they open their tails to expose the white feathers,
and flick the tail upwards--possibly to scare prey out
so they can catch it. I don't see this behavior in these
two clips. In the first clip, the gnatcatcher appears to
pick something off the underside of a branch. In the second
clip, the gnatcatcher is
hovering in front of a bunch hanging dead leaves. Then it turns
its head sideways to focus an eye inside the leaf, then takes
off.
This bird *does* open its tail, but it appears to me to be using
it to stablize flight. I'm impressed by the number of
times the birds pull in their wings and are briefly suspended,
in a "free-fall" situation. The edited video clip is here.
The three images below are frame-grabs from the video.
02/06/2010
Today
I caught this high-speed video clip of an Eastern Bluebird
grabbing a seed. It's a bit out of focus, but still fun to look
at.
The image below is a screengrab from this video clip.
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01/10/2010
Today
was the first bright, sunny Sunday we've had in almost a month. I
didn't spend as much time out around the bigger lakes as I'd like,
but
We had really cold weather
recently. I got to the park a little late Sunday 01/10/2010--but I
was a bit sick. I headed straight to the North tip of Elm Lake
(near Horseshoe Lake ). An otter had been
seen there last week, and I hoped to get lucky. I also wanted to
see how much ice there was, and see how the birds were reacting to
it. It was fun watching some of the Moorhens trying to walk
on
the ice...and breaking through (without harm--they float). Today's
RICKUBISCAM shows one of the Moorhens on the ice. This video
clip
shot at high speed (wmv 12.3 mb) shows one Moorhen
gingerly walking on the ice (but remember this is slow motion
video). If I wasn't already sick, I'd have gone to 40 Acre Lake to
see more of the birds on ice. Lakes freezing over is an
uncommon
occurrance in this part of Texas.
I had no luck on the
otter, but I got to spend some time with the Vermilion Flycatcher
that's been making its rounds at that part of the lake.. It made a
number of appearances and flybys. Of course,
that early in the morning, if it went east it was directly in the
sun. If it went north, I'd face into the sub-freezing wind and my
eyes filled with tears and blinded me. (ha!) However, I did
get a little clip
of it working. The image below is a frame capture from the video
clip. And here's a link
to
the video clip (wmv 5.0 mb).
---------------------------------------
----
-------------------------------------
-----------------------------
-
Immature Bald Eagle?---------------------------------
A bit later, as I was
looking South (towards the water station), I saw the small group
of Whistling Ducks take off and fly towards me. None of the other
waterfowl took off. When I looked up, a rather
large bird was flying towards me, following the trail. It flew
directly over me, and as I looked up it looked very odd. The color
seemed to be overall dark brown, with lighter dapples in it. I figured it was
something uncommon--but also thought it might be an immature
version of whatever bird it was (as a non-birder, it just seems
that as they grow up they go through some weird color phases. I
thought
it could possibly be a Bald Eagle.). As I picked up my camera to
get a shot, I turned and faced straight up, right into the
wind--and my eyes teared up and I was blinded....
The bird began circling, and
so as it passed in wide circles and went off to the west, I was
finally able to snap a couple images, the picture above is the
clearest one. Sorry I couldn't get better images.
Can anyone verify what this is?
And it was really sad to
hear about one of our Least Grebes. It evidently had gotten lost
under the ice while diving, and drowned. The carcass was salvaged
from the ice and will be used for intrepretation.
Since then, I've heard that none of the Least Grebes
have been seen in the park since this freeze. I prefer to
think that they flew off, instead of thinking that they all died.
Later in the day, I went
over to Creekfield Lake. Right near the footbridge there were some
birds looking for food. One of them was a Ruby-Crowned Kinglet. It
flew close by, so I was able to shoot some
high-speed video (for slow motion) clips of it hunting. The image
below is a frame capture from the video, and here is a link
to
the video clip (wmv 14.0 mb).
----------------------------------------------
-
08/16/2009 & 09/06/2009- I got most of the information that follows
from The Sibley Guide to Bird Life and Behavior 1st Edition pp
357-360. Hummingbirds are related to the birds known as
Swifts.
At this time of year they are migrating South, and so large
numbers of them are seen as they try to store fat for their
trip. Although related to the Swifts, Hummingbirds are
different from other birds in
many ways. The unique way that they move their wings allows them
to hover in any direction; and even fly upside-down. This
adaptation makes it possible for them to hover, and feed on
plant nectar.
Hummingbirds normally keep
their body temperature similar to that of other birds--104-111
degrees F. But if food is scarce, or if the temperature
drops they can enter a "state of torpor"--a sort of
suspended animation (reptiles can do this also--but they are
poikilothermic ("cold-blooded")--so have no internal control of
their body temperature). In this torpid state, Hummingbirds can
lower their body
temperature to 55 degrees F or less to conserve energy. While in
this condition, they can lower their heart rate to 50 times per
minute. Compare that to their normal rate of 250 beats per minute
when at
normal rest, or 1250 beats per minute while flying and looking for
food!
Besides eating nectar,
Hummingbirds also eat insects and other small prey. They actively
hunt for these items, even using techniques that other birds use,
such as "hawking"--launching
from a perch to hit
passing prey, or hovering and then diving repeatedly into a swarm
of insects; "gleaning"--searching at the tips of leaves and tiny
openings in bark for tiny larvae, or hovering over leaves and
litter and using
the air wash to turn them over, or even "poaching"--where they
steal food from other hunters--such as spiders. They sometimes
even eat the spiders. This "poaching" ; or the fact that they use
spider
webbing while constructing their nests, may explain how
Hummingbirds sometimes get trapped in spider webs. The two images
at the feeder below (HUMMINGBIRD EATING--WINGS UP, BACK) are
cropped from photos I shot (as is today's RICKUBISCAM). The other
two images belows (HUMMINGBIRD 08/16 AND 09/06) are frame captures
from video clips that I shot. The links for the clips are below
those images. Shooting at high-frame rate video captures the grace
and perfect control the Hummingbird has as it flies. A really good
example of this is shown at the end of the 09/06 clip where
the
Hummingbird shakes itself while it's hovering--and it stays in
complete control. The 09/06 clip also features the Hummingbird
taking off and landing.
-
HUMMINGBIRD
EATING--WINGS UP
HUMMINGBIRD EATING--WINGS BACK
HUMMINGBIRD
08/16/2009
-HUMMINGBIRD
09/06/2009.
Hummingbird
08/16/09
210&420fps wmv 11.6mb Hummingbird
09/06/09
30&210fps wmv 12.1mb
The Hummingbird's tongue
is long, thin, and forked at the very end. It also has two
lengthwise, tiny grooves which conduct the liquid into the
hummingbirds throat by using the passive means of capillary
action,
instead of requiring effort to "suck" the nectar. The image
below of the Humminbird showing its tongue is cropped from a photo
of mine. (See HUMMINGBIRD TONGUE, below.) I have read
that Hummingirds
will favor red flowers or objects--but as the 09/06 clip shows,
this isn't absolutely necessary. The flowers in that clip are
yellow; and they are about 15 steps away from the Hummingbird
plants in the 08/16 clip.
-
HUMMINGBIRD
TONGUE
RICKUBISCAM
09/12/09
Something interesting that
I've come to realize (and one which would probably upset
many uninformed folks) is that at this time of year (late
summer/early fall) some our arthropod species (including
insects and
spiders) are nearing the end of their adult lives and are at their
largest. Many people have heard of "bird eating spiders"
(spiders that eat birds) and when they hear the term, they think
of the large Tarantula-type
species that live in other countries. However, we have bird-eating
spiders here, too. That is, if you count Hummingbirds. Two of our
large spiders--the Black and Yellow Argiope (Argiope Aurantia),
and the
Golden Orb Weaver (Nephila Clavipes) spin orb webs big enough and
strong enough to catch Hummingbirds. I've had correspondence with
someone in College Station who has pictures of a Argiope eating
a
Hummingbird caught in a web outside her house. She saw
another Hummer caught at a another time, but was able to free it.
Another arthropod that has
been photographed eating Humminbirds is the Praying Mantis. From
time to time there have been images of Hummingbirds in the
clutches of a Mantids on the internet. The first time
*I* saw such a picture was in an old issue of Texas Parks and
Wildlife magazine--in the rear "Parting Shot" section. So,
rather sad news. It's kind of interesting that both arthropods are
usually considered
beneficial (except to arachnophobes perhaps; and some people think
mantids are creepy); but their popularity shrinks immensely in a
case like this. For me, this just illustrates some of the complex
relationships
between predators and prey in nature. Now I want to see if I can
film a Hummingbird hunting.
01/25/2009-- While the weather is cold, I've noticed small
birds making short flights over the water, hovering a bit and
doing these quick acrobatic maneuvers. I guessed that they were
snatching small insects
out of the air. I wanted to try to catch some of this
intricate flying on film, but the birds move so quickly that it's
hard to track them. I decided to try for some high framerate
video. I caught a Yellow-Rumped Warbler
doing some hovering and low flying. I believe that the hovering
either flushes insects or allows the Warbler to locate some.
According to The Sibley Guide to Bird Life and Behavior the
Warblers are generally
insectivorous, including the Yellow-Rumped Warbler. However, over
the winter "in the East", Yellow-Rumped Warblers will eat berries
and other fruits. (Pages 499-500). I shot some slow-motion
video of one of
the Yellow-Rumped Warblers hovering. It appeared to hover mostly
over patches of floating weed. See LOW FLIGHT below. The video
clip is here
(wmv
3.5 mb).
----------------------
LOW
FLIGHT
5/07/2006--There is a radio repeater post right next to the
VC/NC (Visitor Center) at Brazos Bend State Park. It is taller
than the top of the two-story VC/NC. Not long after it was
erected, woodpeckers began nesting
in it. The image below (WHO'S THERE?) is the face of a Pileated
Woodpecker that was working on a nest inside the post. While
normally somewhat shy, the woodpeckers in the post can be observed
from a relatively
close distance, if the observer stays quiet and moves slowly. In
fact, it is possible to put your ear against the post and hear the
woopecker knocking away inside. For the photo I used for the
RICKUBSCAM shot, I
moved close to the post while the woodpecker was inside, then
leaned against it and shot up at the hole. There are more pictures
below that will help to put things in perspective. The post is
perhaps 50' high. You can
see that, even with the foreshortening effect, the top end of the
post is not that far from the woodpecker. The "moving back"
effect is only different cropped sections of the same image.
-
-
-
WHO'S
THERE?
A LITTLE FURTHER BACK
EVEN FURTHER
BACK
-
-
-
--
ARE YOU WATCHING
ME?
FROM THE
SIDE
FROM THE
SIDE, CLOSER
According to The
Encyclopedia of North American Birds by Michael Vanner (Parragon
Publishing, 2003 edition), The Pileated Woodpecker (dryocopus
pileatus) is the largest North American woodpecker (after
the
Ivory Billed, which is considered extinct--although recent
findings may prove it still survives!). This book also says that
the staple diet of these woodpeckers is carpenter ants, but it
will also eat various other
wood-boring insects, or even berries.
December 20, 2001
At Brazos Bend Park, at around 5:30 or so in the evening (or just
before darkness falls), if you happen to be standing on the
observation tower which overlooks Pilant Lake, stop whatever you are
doing, listen, and look. You will
not be disappointed (BIRDS! ,
below) On that particular
evening, the first sign of what was coming was the crows--a rising
racket of raucus cawing which got stronger and stronger until
it just suddenly cut off. It was as if someone had hit a switch.
That was in the trees off to the east. Then, off in that
direction, I could see a faint smudge that slowly moved across the
sky. It got thicker and closer, and then,
when I looked at it through binoculars, I saw that it was a huge
mass of birds. Click here
for a short clip showing this mass in action.. (flv
video 564kb no sound)
-------------------------------------------------------------------------
--------------------------------------- BIRDS!
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