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Costa Rica ID help please (1 Viewer)

Firetail

Registered Member
Back in January this year we took a few photos of raptors and looking at the plates in Stiles & Skutch are confused. Anyway can you help with the correct id on this species? Is it Collared Forest-Falcon?
 

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I cannot confirm or the opposite, but when you feel confident in your id, I would urge you to add the photo to the gallery: there is only three images in there, and none of them from this angle.

Niels
 
It's a juv. Bicoloured Hawk (Accipiter bicolor). Juveniles of this species are quite variable, with underparts and collar ranging from deep buff (almost cinnamon) to pure white. It commonly cause confusion, and I've seen very experianced Neotropical birders mistaking it for various other species. Notice the yellow eyes (dark brownish is Collared FF), pattern on cheeks & auriculars (dark line encircling the pale auricular in the Collared FF), relatively narrow ring of skin around the eye (noticeably broader in all FF's), skin on lores is rather bright yellow (duller, more greenish-yellow in Collared FF), and white bars only on inner webs of the rectrices (white on both webs in the Collared FF). Other differences that perhaps are harder to use for people without previous experiance in the discussed species is the relatively fine bill (stubbier in the Collared FF) and the relatively short tail (longer in the Collared FF). Separating the various Neotropical Accipiter's and Micrastur's has often been greatly underestimated (in part due to a number of widely quoted mistakes, which only slowly are being corrected with new publications).
 
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Rasmus is absolutely right. To be honest, I looked at the photo and I scrolled down to confirm Collared Forest-Falcon. It was only when I reached Rasmus's mention of Bicolored Hawk that I realised my mistake (which is pretty bad considering that I have been studying an Accipiter species for the past 7 years). A photo of a Collared Forest-Falcon would have been nice enough, but a Bicolored Hawk is a major rarity and a really great bird to see, let along photograph so well. I have been birding actively in Central America for the past 8 years and I have only ever seen one.
I have a photo database of birds of Northern Central America on my website and there is a big gap where there should be a photo of this species. Derek, would it be cheeky if I asked if I can have a copy to use on my website?

Tom
 
I believe that your Id is secured now. Given your expressed willingness to add this photo to the gallery, I went ahead and added the photo to the Opus, where no photos were found of Bicolored Hawk.

Cheers
Niels
 
I have a photo database of birds of Northern Central America on my website and there is a big gap where there should be a photo of this species. Derek, would it be cheeky if I asked if I can have a copy to use on my website?

Tom

Hi Tom,

Please be my guest and hope it fills the gap.:t:
 
I believe that your Id is secured now. Given your expressed willingness to add this photo to the gallery, I went ahead and added the photo to the Opus, where no photos were found of Bicolored Hawk.

Cheers
Niels

Niels,

Pleased to provide something of use Niels.
 
Thank you again. The link to the Opus page is http://www.birdforum.net/opus/Bicolored_Hawk

Niels

.. and just to illustrate that these species often cause confusion, people might want to take a look at the photo currently featured on the page for the Collared Forest Falcon (I'll correct it tomorrow, but for now it might be of interest to anyone seeking a bit of insight into the identification of the members of this group):

http://www.birdforum.net/opus/Collared_Forest_Falcon

EDIT: Now corrected. The photo previously featured on the above page can now be seen here:

http://www.birdforum.net/opus/Barred_Forest_Falcon
 
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.. and just to illustrate that these species often cause confusion, people might want to take a look at the photo currently featured on the page for the Collared Forest Falcon (I'll correct it tomorrow, but for now it might be of interest to anyone seeking a bit of insight into the identification of the members of this group):

http://www.birdforum.net/opus/Collared_Forest_Falcon

Thanks Rasmus. I have posted another for id, can you help please?
 
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