English and Scientific names: |
White-tailed Hawk
|
Number of individuals: |
1 second year |
Locality: |
Calcasieu |
Specific Locality: |
Along Harris Road, mostly around the T of Harris
Road and Sidney Derouen Road |
Date(s) when observed: |
02/22/12 |
Time(s) of day when observed: |
Around noon |
Reporting observer and address: |
Paul Conover |
Other observers accompanying
reporter who also identified the bird(s): |
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Other observers who
independently identified the bird(s) |
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Light conditions (position
of bird in relation to shade and to direction and amount of light): |
Pretty bad all around. The area was foggy, and there wasn’t much
light showing through. |
Optical equipment: |
zeiss
10s, nikon d50 w/200 mm lens, sony
camcorder, cell phone camera through scope.
|
Distance to bird(s): |
ca. 40-50 yards when bird passed over car. |
Duration of observation: |
30 minutes |
Habitat: |
Ranch and pasture land with patches of weedy
fields, treelines, and woodlots mixed in. |
Behavior of bird: |
The bird was initially drifting overhead, moving
into the stiff south wind, and careening broadly from side to side. When I initially saw it, it passed over the
car and I looked up and saw the underwing markings. I reached for my camera, and the bird
veered—or was blown—a few hundred yards off to my right. It appeared to be returning to the road, so
I gauged its path and met it as it passed over. Unlike most hawks, it seemed unconcerned
with my presence beneath it. Eventually the hawk drifted to the west, landed in
a small tree, then dropped to ground.
I set up my scope and watched it preen. I filmed, photographed it, &c. After preening for several minutes, it jumped up
suddenly and flew at high speed to the SE, in pursuit of an American Kestrel
carrying a food item. The hawk pursued
the kestrel through a series of twists and turns, and was joined in the chase
by a Marsh Hawk. Around this time, the
kestrel gave up its prey, the hawk caught it, and
then dropped into the field out of sight.
Later in the day, I relocated the hawk and watched
as it pursued a Caracara in the same direction. After giving up the chase, it
continued to the SE over Hwy 14 and out of sight. |
Description: |
A fairly large, long-winged, somewhat hooded buteo with scattered dark marking on its underwing
coverts, broad dark belly band below, brownish upperparts with reddish
highlights, white rump, and pale grayish tail. Underwings
with whitish flight feathers evenly barred with thin bars and dusky tips,
forming a somewhat darker trailing edge.
Outer primary tips dark. Coverts
of underwings fairly heavily speckled dark
brownish, with a paler band of unmarked coverts running down their length –perhaps
median coverts? Some molt in flight
feathers. Head capped solidly dark brown except with white
eyebrows and cheek patches separated by a dark eyeline. Breast bright white, whitish belly crossed by broad
dark belly band comprised of thick dark longitudinal streaks. Undertail and undertail coverts pale. Tail with dusky terminal band. Mantle fairly evenly dark brown, with some rusty
feathering molting in to upperwing coverts. Rump white, tail pale gray marked with slightly
duskier terminal band. Legs yellow, tone difficult to make out in poor
light. I didn’t note cere or bill color.
In flight, soared gracefully and with long pointed
wings somewhat like Swainson’s. In accelerated flight very easy motion,
almost a quickly loping gull-like flight.
|
Voice: |
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Similar species: |
Superficial resemblance to Red-tailed Hawk from
below, given the belly band and the fact that this individual was a light-ish bird. However,
tail color and pattern, white rump, and reddish tint to upperwings
eliminate Red-tailed. |
Photographs or tape
recordings obtained? |
I took video and photos. |
Previous experience with
this species: |
Experience with about a half-dozen 1st
and 2nd year birds in Louisiana over past few years, experience with
species in Texas over the years. |
Identification aids: |
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This description is written from: |
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Are you positive of your
identification? If not, explain: |
Yes. |
Date and time: |
02/22/12 |