RE: [cobirds] Hawk Id

I am not a hawk expert either!  But I agree with Joe.  Adult Cooper's based on the head shape, eyes, tail, and horizontal breast streaking, etc.  I wished I had the photo in PhotoShop so I could lighten it a bit.  Would guess that the breast would tend to show a little more rufous orange in the streaking and not quite as dark brown, but don't know that.  Didn't try it since it is a private photo in pbase.

 

Kay

Kayleen A. Niyo, Ph.D.

Niyo Scientific Communications

5651 Garnet St.

Golden, CO 80403

303.679.6646

Kay@KayNiyo.com; www.KayNiyo.com

 

From: cobirds@googlegroups.com [mailto:cobirds@googlegroups.com] On Behalf Of Joe Roller
Sent: Wednesday, October 22, 2014 3:12 PM
To: Jeannie Girard
Cc: Colorado Birds
Subject: Re: [cobirds] Hawk Id

 

Very nice photo! Thanks. This appears to be an adult (based on breast pattern; jury would show vertical streaks) Cooper's Hawk, based on proportions of bird,

rounded, not squared off tail, position of eye in head, etc.

I have never seen one this dark! Off hand I would call it melanistic. Even the terminal tail band is dark and it is usually white.

 I don't think they have pale and dark "phases" like buteos. I will be intrigued by comments from raptor experts. 

 

Joe Roller,*

Denver

 

*Raptor ignoramus

 

On Wed, Oct 22, 2014 at 2:54 PM, Jeannie <nikonjeannie@gmail.com> wrote:

I can not identify this hawk that I saw last week at the Dog park at Cherry Creek State Park, Arapahoe County.  Many people I know have tried to ID it, but so far, no one is sure.

Please take a look and any  help  would be appreciated.

http://www.pbase.com/image/157919391

Thanks,

Jeannie Girard

Aurora

 

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