French: Haplospize unicolore German: Einfarb-Ammertangare Spanish: Yal unicolor
Rio Grande do Sul, Brazil
E Paraguay, NE Argentina (Misiones) and SE Brazil (S Minas Gerais and S Espírito Santo S to Rio Grande do Sul).
12·5 cm; 14–17·5 g. A slim finch with well-proportioned conical bill. Male is almost entirely blue-grey and unstreaked, paler on belly and vent; upperwing blackish with... read more
Song high-pitched and buzzy, and short, lasting from half-second to nearly a full second, beginning... read more
Humid forest borders and undergrowth where abundant bamboo (Guadua and Chusquea... read more
Food and feeding
Seeds of bamboo, appearing to prefer Guadua; also grass seeds and insects. Forages near and on ground; at times also higher.
Timing unclear, perhaps synchronized with bamboo flowering and seeding, specifically with the seeding of Guadua species; in... read more
Irruptive, moving to areas of flowering and seeding bamboo.
Status and conservation
Not globally threatened (Least Concern). Uncommon to rare throughout its range; becomes locally common where bamboo is seeding en masse. This species’ irruptive nature... read more
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