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"Falco sparverius. Rusty-crowned Falcon. Sparrow Hawk. Adults: Crown ashy-blue, with a chestnut patch, sometimes small or altogether wanting, sometimes occupying nearly all the crown. Conspicuous black maxillary and auricular patches which, with three others around the nape, make seven places in all, usually evident, but some of them often obscure or wanting. Back cinnamon-rufous, or chestnut, like the crown-patch, in the male with a few black spots or none, in the female with numerous black bars. Wing-coverts of the male fine ashy-blue, like the crown, with or without black spots; of the female cinnamon-rufous and black barred, like the back. Quill feathers in male, female blackish, usually with pale edges and tips, and the inner webs with numerous white indentations, or bars continuous along the inner webs, leaving the black chiefly in a series of dentations proceeding from the shafts; ends of secondaries usually also slaty-blue like the coverts. Tail bright chestnut, in the male with white tip, broad black subterminal zone, and outer feathers mostly white with several black bars, in the female the whole tail with numerous imperfect black bars. Under parts white, variously tinged with buff or tawny, in the male with a few black spots or none, in the female with many dark brown streaks; throat and vent usually immaculate. Bill dark horn; cere and feet yellow or orange. Elliot Coues, 1884

Sparrow Hawk

"Falco sparverius. Rusty-crowned Falcon. Sparrow Hawk. Adults: Crown ashy-blue, with a chestnut patch,…

With sharp claws, penetrating vision, and enormous strength, it is easy to understand that these birds inspire terror wherever they go, (Figuier, 1869).

Kestrel

With sharp claws, penetrating vision, and enormous strength, it is easy to understand that these birds…