Mishana Tyrannulet

The Mishana tyrannulet weighs about 6 to 7 g (0.21 to 0.25 oz). The sexes have the same plumage. Adults have an olive crown, back, and rump. Their face is slightly paler and more greenish. Their wings are dull blackish with a faint olive cast. The wing coverts have sulphur yellow edges and the secondaries and outer primaries have thinner yellow edges. Their tail is dusky with thin olive green edges on the feathers. Their throat is pale greenish olive, their breast olive yellow, and their belly and undertail coverts sulphur yellow. Voice: The authors who formally described the Mishana tyrannulet noted three different vocalizations in the Loreto population. Its dawn song is "a simple series of two to four nearly evenly spaced notes at about 4 kHz (the final note is sometimes slightly higher), the first of which is longest, with successive notes becoming slightly shorter". During the day it commonly makes "a closely spaced pair...