Tristram's Warbler

Large seabird of offshore tropical waters around the globe; not seen from the mainland. Adult plumage is variable, but all have bright red feet and colorful bill and face; some have wholly brown plumage, others are white with a black trailing edge to the wings; the tail can be black or white. Immatures of all types are brown overall with dull pinkish feet. Looks smaller and more slender than other boobies, with more crooked wings. Nests on offshore islands (usually in trees and bushes, unlike other boobies, which nest on the ground).

Rather small antbird with a disjunct distribution. Males have a yellow face and underparts with a black crown, eye-line, and streaks on the breast. Females have a yellow streaked crown.  Southeastern subspecies has ochraceous lower underparts. Song is a descending and decelerating series of fluted notes becoming harsher at the end. Found in the understory of humid forests, often in areas of transitional forest or poor soils. Rarely accompanies mixed-species flocks. The similar Spix's and Peruvian Warbling-Antbirds have white breasts, and the song of Peruvian is somewhat slower-paced.

A rufous-brown owl with yellow eyes, prominent white eyebrows, and mottled underparts. Juvenile reportedly redder-colored and plainer. Inhabits forested lower foothills, regularly in pairs. A recently described, little-known owl confined to Sumba. Smaller than Sumba Boobook, and separated by yellow eyes, lack of bands on the underparts, and markedly different voice.  Song is a single “woop” note, often given as a duet. One sex calls with a higher pitch than the other.