White-tailed Robin

Cryptic shorebird found predominately in lowland wet grasslands and flooded fields. Note the long straight bill, white belly with variegated cryptic plumage, and prominent contrasting pale lines on the face and back. In flight, shows a white terminal tail band. Sings a fast repetitive “kek kek kek kek” when on the ground. Also listen for harsh and vibrating “drumming” notes that increase in volume, produced with its tail feathers during flight displays. Not restricted to Paraguay; widespread across much of South America. Formerly known as South American Snipe.

Medium-sized plover with a pale throat, brown back, and white belly. Breeding adults have a black mask and a bright orange chest and neck; males average brighter than females. Non-breeding and immature birds are brownish above and white below, with a variable white forehead and eyebrow. Compare with slightly larger Greater Sand-Plover; Tibetan is proportionally smaller-headed and darker-legged, and its shorter bill has a slight bulge at the tip. Smaller Kentish Plover can be similar in non-breeding plumage; Tibetan is taller and longer-legged, without Kentish’s strong white neck band. Very difficult to distinguish from Siberian Sand-Plover, especially nonbreeding and immature birds, though identification can often be presumed by range. In breeding plumage, note the more extensive black mask of Tibetan, typically lacking the white spot on the forehead of Siberian. In nonbreeding plumage, look for a generally broken breast band and clean white flanks in Tibetan. In areas of overlap many birds best left unidentified. Breeds on margins of high-elevation lakes and rivers in China and Mongolia; winters on coastal mudflats, beaches, and inland lakes from Africa to Indonesia.

A small uncrested owl with a round head and a short tail. It is grayish-brown overall with white spots above while its underparts are white with brown bars. Note the distinctive white eyebrows and neck-band. Often active at dawn and dusk when it utters a loud “chirurr-chirurr-chirurr” laugh in addition to a variety of high-pitched squeals and whistles. Inhabits all kinds of open habitats but avoids dense forest and wetter regions.