Torrent Duck

Basically unmistakable and is just what the name says: a swan with a black neck. Fairly common but sometimes local on lakes, slow-moving rivers, wetlands with open water, estuaries, and inshore coastal waters. Often in groups, locally hundreds in winter, and associates readily with Coscoroba Swan. Cygnets are pure white and soon develop a dusky neck; within a month or two after hatching they look like adults.

Cinnamon above and paler below; note the striking white throat and pale eyes. Found in the understory of a precious few patches of humid forest and old second growth, where it usually accompanies mixed-species flocks. The song is a vigorous fast series of 4–6 harsh nasal “ki-dee” notes. The similar-looking but geographically distant White-eyed Foliage-gleaner’s song is very different (a fast series of 5–7 slurred notes).

Uncommon medium-sized owl found in the subtropical and temperate zones of the Andes from Venezuela to Bolivia. Patterned with rufous, dark brown, and white overall. Shows especially noticeable rufous on the facial disk and a spotted white belly. Occurs in the middle to upper levels of humid cloud forests from around 1,700–3,000 m. Nocturnal. Like most owls, more easily heard than seen. Vocalizations similar to Black-and-white Owl—a series of short hoots with a forceful longer hoot at the end—but slower.