About the Rusty-crowned Ground Sparrow
The rusty-crowned ground sparrow is a species of bird in the family Passerellidae, the New World sparrows. It is endemic to Mexico.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
The rusty-crowned ground sparrow is 15 to 18 cm (5.9 to 7.1 in) long and weighs 35 to 41 g (1.2 to 1.4 oz). The sexes have the same plumage. Adults have a dusky black forecrown and a rufous crown; the rufous continues around behind the dusky black ear coverts and then forward under them. They have white lores and a broken white eye-ring. Their upperparts, wings, and tail are brown. Their underparts are mostly white with a black spot in the center of the breast, brown flanks, and rufescent undertail coverts. Voice: The rusty-crowned ground sparrow's song is a "very high simple calm unstructured tjitit-tjitit-tutututut". It also makes "a high, thin, slightly wiry lisping dzzzzzzzziu or ssssssziu, a high, thin ti, often doubled, and high, sharp chips, tk or tsik".
Text from Wikipedia, licensed CC BY-SA 4.0.
Where it lives
When to see it
Peak activity in January · a resident species across most of its range
Easily confused with
Prevost's Ground SparrowMelozone biarcuataPrevost's ground sparrow is on average 15 cm long and weighs 28 g.
Cabanis's Ground SparrowMelozone cabanisiCabanis's ground sparrow is about 15 cm (5.9 in) long.
White-throated TowheeMelozone albicollisThe white-throated towhee is a large sparrow with a long tail, 18.5 to 22.5 cm (7.3 to 8.9 in) long and weighing 42 to 50 g (1.5 to 1.8 oz).
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