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Message: <blockquote data-quote="Rasmus Boegh" data-source="post: 1016485" data-attributes="member: 1146">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).</blockquote>