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
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: Sooty-capped Chlorospingus and Yellow-throated Chlorospingus.