Papuan Harrier

Tiny, mouse-like bird of tepui forest understory. Entirely dark rufous-brown with a stubby tail. Found only in humid, mossy forest on tepui slopes, mostly above 1000 meters, where it is difficult to see, staying close to the ground as it crawls over roots, rocks, and large branches. Usually encountered alone and does not follow mixed-species flocks. Most easily detected by its extraordinary song: a variable series of short, pure whistles, rising and falling but usually ending with several notes on the same pitch; humanlike and easily imitated. May pop into view in response to imitation or playback, bobbing nervously before disappearing. Could be confused with Tepui Wren, but is darker brown overall and lacks buffy eyebrow.

The raven of dry grasslands and desert scrub from the southwestern U.S. to central Mexico. Very similar to Common Raven, and sometimes best left unidentified. Chihuahuan is slightly smaller and more compact than Common, and tends to be found in more open habitats at lower elevations, not in mountains or forests (although Common can be found in low grasslands, too). Neck feathers are white at the base on Chihuahuan, instead of gray. Occurs in pairs or flocks, sometimes quite large, especially in winter. Gives a rather dry, crow-like squawk.

Small white heron with black bill, black legs, and yellow feet. Lores (between eye and bill) are usually bright yellow, but flush reddish in the breeding season. Also note lacy plumes on head, breast, and back during breeding season. Immatures have duller yellow lores and more yellow extending up the legs than adults. Fairly common and widespread in North and South America; often most common along the coast. Found in a variety of wetland habitats, especially shallow marshy pools and mudflats. Forages fairly actively in shallow water, often darting after small fish. Compare with immature Little Blue Heron, which usually has more greenish legs and lores, and note Snowy’s more active feeding style.