Unicolored Tapaculo

Very large, pale gull. Adults are mostly white with a very pale gray back; note pure white wingtips. Immatures are white or pale tan with light brown markings; also look for the distinctive pink bill with sharply demarcated black tip. Most similar to Iceland Gull but larger, larger-billed, and usually even paler; Iceland typically shows more dark markings on wingtips. Also note shorter wingtips on Glaucous that do not extend far past tip of tail. Breeds in the High Arctic; winters farther south in a variety of habitats, rarely far from a large body of water. Often seen in small numbers mixed with flocks of other large gulls. Hybridizes with Glaucous-winged Gull and Herring Gull in parts of range; hybrids can show any mix of intermediate traits and are sometimes best left unidentified.

A large and sometimes conspicuous macaw of Bolivia’s interandean dry valleys. This species is critically endangered, but can sometimes be locally common, especially near tall cliffs cut in hillsides by rivers. Often forages in and around agriculture. The only large, green macaw in its range. Fairly similar to Military Macaw, but shows orange fold to leading edge of wing, no bare facial skin, and a dark gray bill. Often noticed by loud, raucous voice.

Like other green pigeons, usually seen flying overhead or perched in a fruiting tree. Green overall with a neon-blue bill and bright red feet. Sexes are similar, but males have a faint orange wash on the chest that females lack. Very long, sharp-tipped tail is diagnostic and evident both when in flight and when perched. Usually seen in pairs or small to medium-sized flocks in hill forest. Generally quiet; occasionally gives a high fluty “doo!” followed by two to three deeper coos.