Austral Thrush

The austral thrush is 23 to 26.5 cm (9.1 to 10 in) long and weighs 95 to 113 g (3.4 to 4.0 oz). The sexes have the same plumage. Adults of the nominate subspecies have a mostly blackish brown head with a thin orange-yellow eye-ring and a buffy and blackish stippled chin and throat. Their upperparts, wings, and tail are warm brownish olive and their underparts ochre. Both sexes have a dark iris and an orange-yellow bill, legs, and feet. Juveniles have the same warm brownish olive upperparts as adults but with heavy buff streaks. Their underparts are buff-yellow with dark brown spots. Voice: Only male austral thrushes are known to sing. Individuals have a large repertoire consisting of "phrases of whistled and screeching syllables produced at a regular tempo". Older individuals tend to have more songs. The austral thrush is also an accomplished mimic and is known to imitate the songs of at least 12 species including songbirds and raptors.