Mentawai Scops-Owl

A large dark purple-gray pigeon with distinctive white spots on the breast and back, a blue-gray head, and a bright red-and-yellow bill. Often seen flying over the canopy in transit or during display flights, and sometimes perches conspicuously in the open. Found exclusively in montane forests. Vocalizations are poorly known, but appear to consist of a growl followed by multiple low coos. Overlaps locally with White-naped Pigeon, which has a white head patch and dark spots on a lighter chest, unlike the Cameroon Pigeon’s uniformly gray head and white-spotted dark body.

A small, pale, and active tyrannulet. No bright colors; look for a very thick white eyebrow, gleaming white wingbars, a medium-gray crown, and a brown back. Tends to perch horizontally, often with its relatively long tail held level or slightly up. Flits actively, usually in the canopy or subcanopy, often part of a mixed-species flock. Occurs in subtropical and temperate forest and edges in the Andes from Venezuela to Bolivia, from around 2,300 to 3,300 m. Similar to White-tailed Tyrannulet but larger and found at higher elevations; also note White-tailed’s narrower white eyebrow, off-white wingbars, and generally duller plumage than White-banded. Listen for its scratchy rising calls.

A light gray medium-sized tern. Black cap extends to bill in breeding plumage. Bill and legs red. In non-breeding birds, cap reduced to just the area behind the eye, bill has dull pinkish color, and underparts are white. Breeds in the circumpolar subantarctic region. Generally known to stay close to their breeding sites. Migrating Arctic Tern could occur in the same area, but not in breeding plumage, and would show more prominent black markings on outer primaries. White-fronted Tern can be distinguished by its larger body, lighter coloring, and longer, thinner, all-black bill.