Rogue Birder

Cooper's Hawk or Sharp-Shinned?

22 posts in this topic

At Spring Grove Cemetery in Cincinnati 02/04 - I'm seeing Sharp-Shinned, but I figure it will be another Cooper's...

A little help?

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Cooper's seconded.

PSweet, what in those photos do you see to pos ID the Cooper's? It was my guess too, but just a guess.

I eliminated RT and RS and came to Cooper's or Sharpie due to tail length, and while the hawk does look greyish back and head, that's as far as I got with those last two things uncertain. Trying to learn:)

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I was going mostly on what I could see of the face pattern.

Thanks:)

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Cooper's, I like the big head and long-tailed look. I think you can see a pale nape in one photo.

It seems like the tail is almost as long as the body:) The shape is something different for me than the hawks I usually see. The sharpies and coops are harder for me.

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wow, i see pale nape in top picture and very thin legs in the second.. is this the same bird?

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The legs are what made me think sharp. The bird standing on the ground was taken first (through snowy windshield. I watched it fly to a tree and then drove as close to the tree as I could for the second photo.

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I'd be careful using that thin leg character from a single photo. These guys have laterally compressed tarsi and both species can look very thin, depending on the angle. Additionally, it's a rather relative/subjective character if you don't have another bird to compare it against. I agree with Cooper's Hawk for this bird.

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im not sure what lateral compressed tarsi is..but the nape screams coopers, legs say sharpie. i guess its the angle of the photo.

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Tarsi refer to the lower part of a bird's leg (which is actually analogous to the long bones in our feet). Laterally compressed means that they are thinner from left to right than they are front to back. In a photo like this, I would also be careful using that feature because it's common for a white background to bleed around a thin object like a bird's leg, which will make it look thinner.

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Tarsi refer to the lower part of a bird's leg (which is actually analogous to the long bones in our feet). Laterally compressed means that they are thinner from left to right than they are front to back. In a photo like this, I would also be careful using that feature because it's common for a white background to bleed around a thin object like a bird's leg, which will make it look thinner.

Wow! Short paragraph and so much information. Thank you psweet!

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Tarsi refer to the lower part of a bird's leg (which is actually analogous to the long bones in our feet). Laterally compressed means that they are thinner from left to right than they are front to back. In a photo like this, I would also be careful using that feature because it's common for a white background to bleed around a thin object like a bird's leg, which will make it look thinner.

Thank heavens I took a year of zoology years ago:) I still remember a lot of it and while it's different in birds than mammals, a lot is similar. It really helps.

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my dad taught zoology, psysiology and anatomy for years in college. i should know more about that kind of stuff but i dont.lol

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my dad taught zoology, psysiology and anatomy for years in college. i should know more about that kind of stuff but i dont.lol

Who knows! If it was local, maybe I took classes from him:)

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could be.. it was back in the late 70's, early 80's. he taught from 1949-the 80s, then retired. he was the chairman of the Life Science Dept at Los Angeles City College. i went there also back then :)

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could be.. it was back in the late 70's, early 80's. he taught from 1949-the 80s, then retired. he was the chairman of the Life Science Dept at Los Angeles City College. i went there also back then :)

I went to Fullerton, then SDSU, so missed him. But the time was awfully close:) I was in college FOREVER:)

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