• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Where premium quality meets exceptional value. ZEISS Conquest HDX.

Difference between revisions of "Cooper's Hawk" - BirdForum Opus

m
 
Line 27: Line 27:
 
==Discussion : ==
 
==Discussion : ==
 
Like its smaller look-alike the Sharp-shinned Hawk, Cooper's feeds mainly on birds, which it chases relentlessly through the woods. It also takes small mammals and, in the West, lizards and snakes. During incubation and the early stages of brooding the young, the male bird does all the hunting, bringing food to both his mate and the nestlings. Cooper's Hawks mature rapidly for birds their size; a full 25 percent of young birds breed the year after they are hatched, and the rest the year after that.
 
Like its smaller look-alike the Sharp-shinned Hawk, Cooper's feeds mainly on birds, which it chases relentlessly through the woods. It also takes small mammals and, in the West, lizards and snakes. During incubation and the early stages of brooding the young, the male bird does all the hunting, bringing food to both his mate and the nestlings. Cooper's Hawks mature rapidly for birds their size; a full 25 percent of young birds breed the year after they are hatched, and the rest the year after that.
 +
 +
Here is a thread discussing separation from Sharp-shinned Hawk. [[http://www.birdforum.net/showthread.php?t=15132]]
 +
 
==Identification==
 
==Identification==
 
Photographed in St George Utah.
 
Photographed in St George Utah.

Revision as of 21:14, 25 April 2007

Accipiter cooperii
Photo by plwilliams

Description

14-20" (36-51 cm). W. 28" (71 cm). A crow-sized hawk, with long tail and short rounded wings. Adult slate-gray above, with dark cap, and finely rust-barred below. Immature brown above, whitish below with fine streaks. Tail tip rounded, not squared-off.

Similar species :

Most like Sharp-shinned Hawk. Tail more rounded, rather than notched or straight. In flight, the wings are brought forward with Sharp-shinned, but extend straight out with Cooper's. The heard shape is different, with Cooper's having a longer, more "blocky" head. Also similar to Northern Goshawk.

== Habitat : == Deciduous and, less often, coniferous forests, especially those interrupted by meadows and clearings.

Nesting :

4 or 5 dull-white eggs, spotted with brown, on a bulky platform of sticks and twigs, usually more than 20' (6 m) above the ground.

Range :

Breeds from British Columbia east to Manitoba and Canadian Maritimes, and south to Mexico, Gulf Coast, and northern Florida; absent or local throughout much of Great Plains. Winters from Central America north to British Columbia and southern New England.

Voice :

Loud cack-cack-cack-cack, a little bit lower than Sharp-shinned.

Discussion :

Like its smaller look-alike the Sharp-shinned Hawk, Cooper's feeds mainly on birds, which it chases relentlessly through the woods. It also takes small mammals and, in the West, lizards and snakes. During incubation and the early stages of brooding the young, the male bird does all the hunting, bringing food to both his mate and the nestlings. Cooper's Hawks mature rapidly for birds their size; a full 25 percent of young birds breed the year after they are hatched, and the rest the year after that.

Here is a thread discussing separation from Sharp-shinned Hawk. [[1]]

Identification

Photographed in St George Utah.

This is a female.

Wing & weight of Cooper's Hawks

Here is link with Cooper's Hawk data.. http://www.birdwatching-bliss.com/coopers-hawk.html

Originally posted by talon_dfa

External Links

Back
Top