Yellow-throated Chlorospingus

The two subspecies of the "yellow-throated" group of the yellow-throated chlorospingus are about 15 cm (5.9 in) long and weigh 21.5 to 31 g (0.76 to 1.1 oz). The sexes have the same plumage. Adults of the nominate subspecies C. f. flavigularis have gray lores. Their rest of their face and their crown, nape, upperparts, and tail are yellowish olive. Their flight feathers are dusky with dull yellow edges. Their throat is yellow, with the color extending sideways onto the neck. Voice: The dawn song of the yellow-throated chlorospingus in Colombia is "a short, weak and high-pitched chit, twee-twee-twee-twit in steady series of more or less alternating notes". On the western slope in Ecuador it is "a monotonous series of high-pitched tsit notes at a rate of about 2/second" and on the eastern slope "a steady series of 2 alternating notes, tsuw-tseét, tsuw-tseét...".