Members of the genus Micrastur are falcons varying in size from small to quite large. Their wings are short and very rounded. The tail is often long, rounded and arched, but in some forms comparatively shorter. The beak is short, deep and (unusually for a falcon) untoothed. They have long legs. The crown feathers are slightly pointed; those of ear region are narrow, stiff and upsurged, forming a slight ruff. They have large ear openings and hunt in part by sound. There are five species, all in the tropical forests of the Americas.
two or three (occasionally one) narrow light bars. The grey bars of the breast seem to average a little less black, somewhat softer, often a bit browner in gilvicollis, but many specimens of both forms are quite similar. In males the barring is finer than in females. The extent of the barring is variable. In
gilvicollis it may extend posteriorly from the breast to greater or lesser degree, especially over the flanks and tibia, even to the crissum (where it is usually quite sparse and limited to the lateral feathers), but most ndividuals
are immaculate, or nearly so, on the belly. Many individuals of concentricus have barring extending equally over the entire underparts. (all have the iris white, the bare facial skin reddish-orange, and the legs yellowish-orange with the claws roughly ?horn? or lighter.
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Video Lined Forest Falcon
Ranging from East Colombia through South Venezuela to the Guianas and South throughout Amazonia. In Suriname the commonest bird of prey in the interior.