Chalk-browed Mockingbird
Mimus saturninus
The chalk-browed mockingbird is 23.5 to 26 cm (9.3 to 10.2 in) long and weighs 55 to 73 g (1.9 to 2.6 oz). Males are slightly larger than females. Adults of the nominate subspecies have a dark brown crown, a broad white supercilium, a blackish line through the eye, and white cheeks. Their upperparts are brownish with some darker streaks; the rump is buffier. Their wings are blackish and show two obscure bars when folded. The tail is also blackish; most feathers have white tips and the outermost have white edges. Voice: The chalk-browed mockingbird's song is loud, a "varied series of notes, trills, phrases". Its calls include a "sharp and penetrating 'tshrip'" and a "snorting sha-sha-sha". It often mimics other species including some raptors.
ID text from Wikipedia, CC BY-SA 4.0
Chilean Mockingbird
Mimus thenca
The Chilean mockingbird is 28 to 29 cm (11.0 to 11.4 in) long and weighs 66 g (2.3 oz). The male is somewhat larger than the female. Adults have a wide whitish supercilium. Their crown, neck, and back are brownish gray with darker streaks and their rump browner. The wings and tail are blackish. The wings show two narrow bars when folded. The outermost tail feathers have white edges and most of the others have white tips. The throat is whitish, the chest brownish gray, the belly dirty white, and the flanks buffy with blackish streaks. Voice: The Chilean mockingbird sings year round, "a series of sweet, variable notes and phrases". It is an "excellent mimic of other bird species".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Chalk-browed Mockingbird and Chilean Mockingbird.