Drab-breasted Bamboo Tyrant

The drab-breasted bamboo tyrant or drab-breasted pygmy-tyrant (Hemitriccus diops) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Brazil, and Paraguay. == Taxonomy and systematics == The drab-breasted bamboo tyrant is monotypic. Some early to mid-twentieth century authors considered it and what are now the brown-breasted bamboo tyrant (H. obsoletus) and flammulated bamboo tyrant (H. flammulatus) to be subspecies of it. Since at least 1966 most systems have recognized the three as individual species. They form a superspecies. == Description == The drab-breasted bamboo tyrant is about 11 cm (4.3 in) long and weighs 9.5 to 13.5 g (0.34 to 0.48 oz). The sexes have the same plumage. Adults have a plain dark olive-green crown. They have a white spot above the lores and a white eye-ring on an otherwise olive-green face. Their back and rump are plain dark olive-green. Their wings and tail are plain olive though sometimes the innermost secondaries have paler edges. Their throat and breast are mostly dull gray with a pinkish or purplish tinge; there is a faint white crescent between them. Their belly is whitish and their crissum whitish with a yellow tinge. They have a…