Streak-headed Munia

Pale, medium-sized gull, smaller and daintier than Glaucous or Herring Gulls. Often looks cute with rounded head and small bill. Extremely variable plumage. Variation is apparently clinal across the Arctic breeding range, from darkest in the west to palest in the east. The palest adults have very pale gray backs and nearly pure white wingtips. The darkest birds, formerly known as Thayer’s Gull, are darker gray above and have blackish wingtips. Young birds range from almost pure white to medium brown, never as dark as Herring Gull. First-year birds usually have a mostly dark bill. Winters along both coasts of North America and in Europe, often near the ocean or on large lakes. Typically found in small numbers among flocks of other large gulls.

A distinctive, fairly large hummingbird with a super long bill. Note the streaky throat and breast, and dull green upperparts with a coppery crown. The tail has a pale gray base, a broad black band, and white tips. Sexes similar, although female lacks toothlike serrations on bill (nearly impossible to see in the field). Found in lowlands and foothills from extreme eastern Panama to northwest Ecuador. Typically occurs within mature humid forest where it feeds in the lower to middle levels.

Small olive-yellow tanager with a dingy brown face and crown and a yellow eyebrow. Found in humid elfin forest in the southern Peruvian Andes, where it forages singly or in pairs, often joining mixed-species flocks with other tanagers, flowerpiercers, and hemispinguses. Compared to the smaller Citrine and Pale-legged Warblers, note the blunter gray bill (black and thin in the warblers), larger size, and bolder behavior.