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Bird call, hawk ID - Portland, OR USA

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Old Friday 3rd July 2020, 06:20   #1
coltrv
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Bird call, hawk ID - Portland, OR USA

This is a very bad recording. Youíll have to turn your volume wayyy up to hear the bird, and you still probably wonít hear it. Itís sort of drowned out by cars and other birds, but itís in there, I promise. To me it sounds like an ascending zipper: https://drive.google.com/file/d/1NUj...w?usp=drivesdk
Also, is it possible to tell if this is a Cooperís hawk or Sharp-shinned hawk?
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Old Friday 3rd July 2020, 08:07   #2
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Compact and relatively short-tailed...I’m in the Sharpie camp on this one.

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Old Friday 3rd July 2020, 15:16   #3
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It doesn't look compact to me and the head projects far beyond the wings and the tail feathers are obviously graduated. I'm confident it's a Cooper's.
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Old Friday 3rd July 2020, 17:52   #4
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If more photos would help, I have a few more photos of slightly different angles:
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Old Friday 3rd July 2020, 18:21   #5
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Based on the first image in #1, I would definitely favour Coopers - (the rounded proportionately short wing and generally heavy appearance) - the first of the 3 other images shows a typical flight shape for Coops as do all of them. Sharpies typically glide with wrists bent forward and a ‘small’ head held behind the leading edge of the wings (although this isn’t a hard and fast rule). The second of the 3 images perhaps looks a bit like a Sharpie with the tapered hands but it also shows wide-ish hips and other Coop features! I find folded tail shape on flying raptors often misleading!

(edit just to add, FWIW, although the rounded tail can clearly be seen on the first image, this does not always work as a criteria to distinguish eg Coopers from Sharpies or E.Sparrowhawk from Goshawk imo as moult score, tail position, feather wear can all effect the distal shape although in this case, the image clearly shows the shorter outer retrices . From my own experience, I think it can be tempting to focus too much on tail shape at the risk of ignoring other structural ID criteria which are just as important such as overall proportions, wingshape, tail length etc.)
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Old Friday 3rd July 2020, 19:55   #6
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Certainly looks a “heavier” bird in the new pics! Am wondering if it’s a male, as compared to a family group that I saw some years ago now, two juv. females and a male, with the former being much longer tailed than their sibling brother?

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Old Friday 3rd July 2020, 20:02   #7
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Absolutely a Cooper's Hawk. You can easily see the shorter outer tail feathers in the first picture. Nothing about this bird suggests Sharp-shinned to me.
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Old Friday 3rd July 2020, 23:30   #8
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I agree with Cooper's Hawk.
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Old Friday 3rd July 2020, 23:39   #9
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Cooper's for me as well
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Old Friday 3rd July 2020, 23:57   #10
Jeff hopkins
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Coop.
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