Family Typical Antbirds (Thamnophilidae)

Near Threatened

Unicolored Antwren (Myrmotherula unicolor)


Taxonomy

French: Myrmidon unicolore German: Paranáameisenschlüpfer Spanish: Hormiguerito unicolor
Taxonomy:

Myrmothera unicolor

Ménétries

, 1835,

no locality = Rio de Janeiro, Brazil

.

Formerly treated as conspecific with M. snowi; also appears to be closely related to M. grisea and M. behni of Andes and N Amazonian mountains. The four have together been termed the “Plain-winged Myrmotherula group”; this is often combined with the “grey antwren assemblage” (see M. axillaris). Monotypic.

Distribution:

Coastal SE Brazil (N Rio de Janeiro S to N Rio Grande do Sul).

Descriptive notes

9–10 cm; 6·5–8·5 g. Male is grey, paler below; base of throat feathers black, tips grey. Female is olive-brown above, slightly greyer on crown and nape, uppertail... read more

Voice

Loudsong a series of simple, slightly down­slurred notes on approximately same pitch (c. 4 kHz... read more

Habitat

Understorey and mid-storey of lowland evergreen forest and mature second-growth woodland; locally (... read more

Food and feeding

Little published. Feeds on small insects, including orthopterans (Tettigoniidae) and lepidopteran adults (moths) and larvae, also spiders.... read more

Breeding

Three nests found in Nov in São Paulo; juvenile-plumaged males seen in close company of adults in late Oct in Santa Catarina. Nest a cup,... read more

Movements

Presumed resident.

Status and conservation

Not globally threatened. Currently considered Near Threatened, and previously, Vulnerable. Restricted-range species: present in Atlantic Forest Lowlands EBA. Uncommon,... read more

Recommended citation

Zimmer, K. & Isler, M.L. (2018). Unicolored Antwren (Myrmotherula unicolor). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/56737 on 15 December 2018).