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Raptor in Brazil

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Old Thursday 14th March 2019, 15:43   #1
Organophil
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Raptor in Brazil

Hello,

I have observed that bird in Minas Gerai, end of february. It was soaring above the ridge of a hill at +/- 1500m.

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Old Thursday 14th March 2019, 16:27   #2
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Adult dark morph Swainson's hawk, I think. Only other thing which might come close in the area is Harris Hawk but this has a very different tail (thick black/white bar), and should have clear orange underwing coverts [amongst other things].
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Old Thursday 14th March 2019, 16:32   #3
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This looks to me like a Variable Hawk (immature female) Geranoetus polyosoma (aka Red-backed Hawk Buteo polyosoma), on wing shape, colour and pattern, but this would be a rarity in Minas Gerais (and Brazil), so wait for more opinions!

EDIT: crossposted with THE FERN
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Old Thursday 14th March 2019, 16:32   #4
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I will be curious to see what this one turns out to be. Harris's H (Bay-winged) was a first wild idea, but I have no books here to check against.

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Old Thursday 14th March 2019, 16:44   #5
RafaelMatias
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No Harris's Hawk. But I think it would be worth making an analysis of Swainson's vs. Variable, which I don't have the time to do right now (obviously fully agree Swainson's is the most likely option...but...).
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Old Thursday 14th March 2019, 16:58   #6
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Image of darker Swainson: https://www.birdforum.net/gallery/sh...p?photo=504054
Not same color but similar profile: https://www.birdforum.net/gallery/sh...p?photo=317355 somehow the secondary bulge on the OP bird looks more impressive.

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Old Thursday 14th March 2019, 18:17   #7
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I've seen imm Black-chested Buzzard-eagles remarkably similar to this bird. Habitat and range fit fine. Any other pics available?
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Old Thursday 14th March 2019, 18:29   #8
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Quote:
Originally Posted by Motmot View Post
I've seen imm Black-chested Buzzard-eagles remarkably similar to this bird. Habitat and range fit fine. Any other pics available?
compare: https://www.birdforum.net/opus/Image...e_immature.jpg

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Old Thursday 14th March 2019, 18:35   #9
RafaelMatias
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Quote:
Originally Posted by Motmot View Post
I've seen imm Black-chested Buzzard-eagles remarkably similar to this bird. Habitat and range fit fine. Any other pics available?
Eduardo, I think you clinched it! Although wing shape screams Geranoaetus I dismissed that option!
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Old Thursday 14th March 2019, 20:27   #10
Organophil
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Thanks for the infos.

I would bid for the Black-chested Buzzard-eagles.
Because the bird looked huge to me.
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Old Thursday 14th March 2019, 20:28   #11
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Looks good to me.
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Old Friday 15th March 2019, 04:04   #12
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black chested buzzard eagle
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