Typical Antbirds (Thamnophilidae)

Yungas Antwren (Myrmotherula grisea) - HBW 8, p. 595

French: Myrmidon cendré German: Yungasameisenschlüpfer Spanish: Hormiguerito Ceniciento
Other common names: Ashy Antwren

Taxonomy: Myrmotherula grisea Carriker, 1935, Santa Anna, 2200 feet [670 m], La Paz, Bolivia.
Appears to be closely related to M. behni on basis of habitat and vocalizations, also to M. unicolor and M. snowi of Brazilian Atlantic Forest, the four together termed the “Plain-winged Myrmotherula group”. They are often grouped with M. axillaris, M. schisticolor, M. sunensis, M. minor, M. iheringi, M. fluminensis, M. longipennis, M. urosticta and M. menetriesii as the “grey antwren assemblage”, although this grouping possibly not monophyletic. Monotypic.

Distribution: NE base of Andes in W Bolivia (La Paz, Cochabamba, W Santa Cruz).