- Order: Passeriformes
- Family: Thamnophilidae
Manaus, Amazonas, Brazil; 9 January 2011 © Anselmo d'Affonseca
A typical member of the ‘streaked’ antwren, a group of ten species that is largely restricted to Amazonia and northwestern South America, with small extensions into Central America, the Pygmy Antwren’s range encompasses the greater part of Amazonia. The Moustached Antwren (Myrmotherula ignota) is probably this species’ closest relative, and the two have been considered conspecific. Due to its canopy habits, where the species especially favors tall vine tangles, and the Pygmy Antwren’s obviously tiny size, it is only likely to be frequently noticed by those observers that are familiar with the bird’s song, an accelerating series of notes that become more abrupt as they decrease in pitch at the terminus. The Pygmy Antwren is often found in the same mixed-species flocks as the congeneric and broadly similar in morphology Sclater’s Antwren (Myrmotherula sclateri).
. 2010. Pygmy Antwren (Myrmotherula brachyura), Neotropical Birds Online (T. S. Schulenberg, Editor). Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Birds Online: http://neotropical.birds.cornell.edu/portal/species/overview?p_p_spp=374931