Juvenile Cooper's Hawk? - WA State USA (1 Viewer)

BodyResults

Well-known member

• Mar 16, 2013

• #1

This this hawk on a tree next to feeders in a rural area outside Seattle. I'm pretty sure this is a Juvenile Cooper's Hawk but wanted to confirm. I was wanting it to be a Sharp-shinned but chest pattern seems more like a Cooper's. Also the head appears to be what Sibley call orange and buffy.

What do you think?

Thanks
Doug

 

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lou salomon

the birdonist

• Mar 16, 2013

• #2

that's a juv. sharp-shinned hawk. slim toes, strong lower belly blotches and head shape (gentle impression).

 

Valéry Schollaert

Respect animals, don't eat or wear their body or s

• Mar 16, 2013

• #3

lou salomon said:

that's a juv. sharp-shinned hawk. slim toes, strong lower belly blotches and head shape (gentle impression).

Click to expand...

:t:

 

BodyResults

Well-known member

• Mar 17, 2013

• #4

I'm still learning toward the Cooper's because of the tail feather stacking. I think the Sharpie would have all tail feathers about the same length. On this one when it spreads it's tail with this stacking I would think it will come out in more of a fan shape than squared off.

 

J

Jim M.

Member since 2007

Supporter

• Mar 17, 2013

• #5

BodyResults said:

I'm still learning toward the Cooper's because of the tail feather stacking. I think the Sharpie would have all tail feathers about the same length. On this one when it spreads it's tail with this stacking I would think it will come out in more of a fan shape than squared off.

Click to expand...

Agreed. Cooper's Hawk. The "stacking" you refer to is diagnostic.

Jim

 

apbarr

Well-known member

• Mar 17, 2013

• #6

BodyResults said:

I'm still learning toward the Cooper's because of the tail feather stacking. I think the Sharpie would have all tail feathers about the same length. On this one when it spreads it's tail with this stacking I would think it will come out in more of a fan shape than squared off.

Click to expand...

I agree as well, Cooper's for me

 

C

ceasar

Well-known member

• Mar 17, 2013

• #7

Deep chested, narrow hipped appearance is characteristic of Sharp-shins. Coopers are more barrel shaped.

Compare with Sharp-shins pictured here:

http://www.peregrine-foundation.ca/raptors/Sharpshinned.html

Bob

 

K

Kratter

Well-known member

• Mar 17, 2013

• #8

The tail is diagnostic, whereas subtle cues of shape,, slimness, etc. are subjective and somewhat at the whims of photo angle, lens length, etc; plus these differ by sex (males much smaller than females). The much shorter outer rectrices are not found in Sharpies (except when molting) and the even moderate wear in the rectrices indicates no molt.

Andy

 

C

ceasar

Well-known member

• Mar 17, 2013

• #9

Female SS can have rounded type tail tips.

Wheeler in his RAPTORS of Western North America at page 170 under SIMILAR SPECIES in this case Coopers Hawk: PERCHED.-- advises "use caution when comparing very rounded type tail of female Sharp-shinned Hawks as they can be very like Cooper's Hawks.White terminal band on tail is wide but may be mostly worn off by spring."

 

JANJ

Well-known member

• Mar 17, 2013

• #10

I agree to Cooper´s, heavily streaked western.

Take a look at the tail on this one:

http://www.birdforum.net/showthread.php?t=105561&highlight=juvenile+cooper%B4s+hawk

JanJ