The Brown jay (Psilorhinus morio), the largest North American jay, is relatively large, and predominately dark brown with a pale buff brown or pale white vent and belly. The head is darker brown with thick, black bill. Legs and feet are black. Brown Jays are extremely aggressive and have been observed fending off and even attacking large predators. Unique among corvids, Brown Jays possess a bare skin furcular pouch, which is normally hidden by breast and throat feathers but becomes visible when inflated with air during vocalisations.
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