Yellow-browed Tody-Flycatcher

The yellow-browed tody-flycatcher (Todirostrum chrysocrotaphum) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. == Taxonomy and systematics == The yellow-browed tody-flycatcher was originally described in 1850 as a full species with its current binomial Todirostrum chrysocrotaphum. The yellow-browed tody-flycatcher has these five subspecies: T. c. guttatum Pelzeln, 1868 T. c. neglectum Carriker, 1932 T. c. chrysocrotaphum Strickland, 1850 T. c. simile Zimmer, JT, 1940 T. c. illigeri (Cabanis & Heine, 1860) Some mid-twentieth century authors considered the black-headed tody-flycatcher (T. nigriceps) and painted tody-flycatcher (T. pictum) as additional subspecies, but by the 1970s they had regained their status as full species. Several authors treat the three of them as a superspecies. In addition T. c. guttatum was originally described as a full species and continued to be treated that way into the early twentieth century by authors. == Description == The yellow-browed tody-flycatcher is 8.6 to 10 cm (3.4 to 3.9 in) long and weighs about 7 g (0.25 oz). The sexes are alike. Adults of the nominate subspecies T. c. chrysocrotaphum have a mostly black head with a white spot above the lores and a…