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
Sooty-capped Chlorospingus
Chlorospingus pileatus
The sooty-capped chlorospingus is 13 to 14 cm (5.1 to 5.5 in) long and weighs about 16 to 24 g (0.56 to 0.85 oz). The sexes have the same plumage. Adults have a mostly sooty black head with a bold jagged white stripe from above the eye back and down the neck; its shape has been likened to a lightning bolt. Their upperparts and tail are olive. Their flight feathers are dusky with olive-yellow edges. Their throat is whitish with many, though inconspicuous, black specks. Voice: The sooty-capped chlorospingus sings "a thin squeaky twittering". The song has been written as "see-chur see-chur see-chur see see see-chur" and "sit-sit swíee-d-d-d-d-d-d sit-a-wit". Its calls include "high, thin, lisping tsit notes followed by t-z-z-z-z-z-zit, chat-t-t-t-, zwee-zwee-zwee... and so on".
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 Sooty-capped Chlorospingus.