Golden Vireo vs Thick-billed Vireo

Golden Vireo

Vireo hypochryseus

Tiny12 gShrubland

The golden vireo is about 12 to 13 cm (4.7 to 5.1 in) long and weighs an average of 12.2 g (0.43 oz). The sexes have the same plumage. Adults have a wide lemon yellow supercilium and streak above the lores with a dark streak through the eye. Their upperparts and tail are yellowish olive-green. Their flight feathers are dark brownish gray with pale yellowish olive edges; by the outer primaries the edges have lightened to pale gray or grayish white. Their underparts are lemon yellow with a pale olive green tinge on the flanks. Voice: The golden vireo's song is "a rapid series of bright notes, the last usually sharply inflected upwards, whee-whee-whee-wheet or jujujujujeet, at times preceded and followed by a sharp chip, tsik, deeu-deeu-deeu-deeu-deeu-deeu tik".

ID text from Wikipedia, CC BY-SA 4.0

Photo: datadan · CC BY 4.0

Thick-billed Vireo

Vireo crassirostris

Tiny13 gWoodland

The thick-billed vireo is 11.5 to 13.4 cm (4.5 to 5.3 in) long and weighs about 11 to 16 g (0.39 to 0.56 oz). The sexes have the same plumage. Adults of the nominate subspecies V. c. crassirostris have a mostly grayish olive to brownish olive crown, face, and nape with blackish lores, a pale yellow stripe above the lores, and a pale to darker yellow eye-ring that sometimes is incomplete. Their upperparts are grayish olive to brownish olive with a more olive-green rump and uppertail coverts. Their wing coverts are dusky grayish brown with wide white tips that form two prominent wing bars. Voice: The thick-billed vireo's song is a "ubbly, variable chik-didle-wer-chip". Only males sing.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Grete Pasch · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Golden Vireo and Thick-billed Vireo.