Black-browed Babbler

Rather large, dark, stocky gull-like seabird with big white wing patches (seen in flight). In summer often seen flying over Patagonian steppe or associating with Kelp Gulls at beaches, dumps, river mouths, and lakes near the coast. Also found well offshore, where it chases other birds to steal their food. Usually seen as singles or small groups. Plumage variable, but always with some orange tones—sometimes bright and extensive, sometimes limited to underwing and base of tail. The only skua likely to be seen in Chile and southern Argentina.

Dull brown bulbul with streaky patch over the ears. Very similar in appearance to Streak-eared Bulbul but browner and with dull red (not pale gray) eyes. Common in lowland and foothill open forest, forest edge, and open scrub, and near human habitation. Unmusical vocalizations include chatters and chirps.

Skulking warbler typically found in marshes, moist grassland, and edge of swampy forest. Male is quite distinctive with his black bandit mask and gray crown. Female can be confusing, but her yellow throat usually stands out against her olive upperparts and sides. Song is a rich up-and-down series of whistles. Calls include a descending series of chip notes and a short rasp. Pairs usually stay well hidden, but males sometimes sing from an exposed perch. This species is at least partially migratory. In the southern part of its range it is present only in the austral summer, when it breeds, then moves north in the winter. In some parts of its range it can be seen year-round. Formerly considered a subspecies of Masked Yellowthroat.