Austral Thrush
Turdus falcklandii
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.
ID text from Wikipedia, CC BY-SA 4.0
Pale-breasted Thrush
Turdus leucomelas
The pale-breasted thrush is 23 to 27 cm (9.1 to 11 in) long and weighs 47 to 78 g (1.7 to 2.8 oz). The sexes have essentially the same plumage, though females sometimes have darker heads than males. Adults of the nominate subspecies T. l. leucomelas have a medium gray crown and whitish-streaked grayish ear coverts. Their upperparts, wings, and tail are generally pale olive brown. Their wing coverts and the edges of their secondaries are slightly rustier and their primaries and tail are somewhat darker. Voice: The pale-breasted thrush sings in a tree from its mid-section to crown and sometimes in flight. Its song is "a series of melodious phrases with individual notes variably repeated, chirr juep juele chip chirr". It has been compared to that of an American robin (T. migratorius) but is more complex.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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