Green-backed Becard

The green-backed becard is about 14.5 to 16 cm (5.7 to 6.3 in) long; two individuals of the nominate subspecies weighed 18 and 21 g (0.63 and 0.74 oz). Adult males of the nominate subspecies have a glossy black crown, whitish lores, and a thin yellowish eye-ring. The lower part of their face and their nape are pale gray. Their upperparts are mostly bright olive with dusky olive flight feathers and tail. Their throat is whitish, their breast bright yellow to olive yellow, and the rest of their underparts grayish white with a buffy tinge. Adult females have a similar pattern to males. Voice: The green-backed becard's song is starts abruptly and then is an "ascending and slightly decelerating series of 10-15 dee-dee--- notes or series of ascending jeh-weeé-- (6-20x)". Its usual call is "a fast, thin and nasal q-wink, q-wink that rises in pitch, and may be repeated up to 12 times".