Thick-billed Vireo vs Yucatan Vireo

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

Yucatan Vireo

Vireo magister

Small15 gForest

The Yucatan vireo is about 15 cm (5.9 in) long and weighs about 13.5 to 25 g (0.48 to 0.88 oz). The sexes have the same plumage. Adults of the nominate subspecies V. m. magister have a pale brownish white supercilium and brownish gray lores; the latter color extends to behind the eye. Their crown, nape, and upperparts are dark gray-brown with an olive tinge on the back. Their primaries and secondaries are blackish gray with thin paler olive edges on the outer webs. Their tail is dark brownish gray. Voice: On Grand Cayman the Yucatan vireo sings a "two-note whistle whoi whu and 3-syllable sweet, brid-get". In Belize it sings "a rich warble, evenly paced...cheer up sweet or cheer up why not sweet" A variation there is "beer-here alright!-wheo". Its calls include "a soft, dry shi-tchi-chi-chi chatter, a low, frequently repeated bik-bik, and a wik like that of a woodpecker".

ID text from Wikipedia, CC BY-SA 4.0

Photo: Isis I. Castro Alberto · CC BY 4.0

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