Black-tailed Myiobius (Myiobius atricaudus) [XC532348]
by Mauricio \u00c1lvarez-Rebolledo (Colecci\u00f3n de Sonidos Ambientales - Instituto Humboldt) from Vereda Los Boh\u00edos, Hacienda Tintin\u00e1, Cuenca r\u00edo Tapias, Guadual y borde de ca\u00f1ada, Colombia (?)
Black-tailed Myiobius (Myiobius atricaudus) [XC84096]
by Marcus Braun from Paragominas, PA, Brazil, Bacia 549, Brazil (song)
Subspecies
Subspecies portovelae sometimes lumped with nominate because of similarities in plumage and poorly defined geographical boundaries between the two.
The following 7 subspecies are recognised:
atricaudus Lawrence, 1863 - South-western Costa Rica south to western Colombia.
modestus Todd, 1912 - Locally in central and eastern Venezuela (northern Bolívar).
portovelae Chapman, 1924 - Western Ecuador and north-western Peru.
adjacens Zimmer, JT, 1939 - Southern Colombia, eastern Ecuador, eastern Peru, and western Brazil south of Amazon.
connectens Zimmer, JT, 1939 - North-central and north-eastern Brazil south of Amazon.