Ashy-throated Chlorospingus
Chlorospingus canigularis
The ashy-throated chlorospingus is 13 to 14 cm (5.1 to 5.5 in) long and weighs 14.5 to 21 g (0.51 to 0.74 oz). The sexes have the same plumage. Adults of the nominate subspecies C. c. canigularis have a mostly gray head with slightly darker ear coverts and a grayish white throat. They have a wide light yellow band across the chest that continues with an olive tinge along the sides and flanks. The centers of their breast and belly are whitish to grayish white and their undertail coverts olive-yellow. Voice: In Peru, subspecies C. c. signatus of the ashy-throated chlorospingus sings "an accelerating series of high chipping notes that falls, then rises in pitch". There its call is "a dry, metallic tik, usually given in a stuttered series". In Colombia the species sings "tsuk...tsuk...chit-chit chi’t’t’t’t’t’t’a’a’a’a’i’i’it’it-tit, trill rising slightly, then descending, and rising again at end".
ID text from Wikipedia, CC BY-SA 4.0
Yellow-throated Chlorospingus
Chlorospingus flavigularis
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...".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Ashy-throated Chlorospingus and Yellow-throated Chlorospingus.