Costa Rican Swift vs Pale-rumped Swift

Costa Rican Swift

Chaetura fumosa

Small16 gForest

The Costa Rican swift is about 11 cm (4.3 in) long. The sexes are alike. Their head is dusky. Their upperparts are mostly sooty black with a blue gloss and a pale grayish rump and dull black uppertail coverts. Their throat and breast are pale grayish. Voice: The Costa Rican swift makes "high-pitched calls such as single 'weet', 'tsew' or 'tsee' notes" and usually combines them with "longer twittering series such as 'titititititititi' or 'titititrrrr'."

ID text from Wikipedia, CC BY-SA 4.0

Photo: Adam Jackson · CC0

Pale-rumped Swift

Chaetura egregia

Small23 gForest

The pale-rumped swift is about 10.5 cm (4.1 in) long and weighs about 23 g (0.81 oz). It has a protruding head, a short square tail, and wings that bulge in the middle and somewhat hook at the end. The sexes are alike. Their upperparts are black with a bronze gloss and a whitish rump and uppertail coverts. Their underparts are mostly dark, with a pale throat and blackish undertail coverts. Voice: The pale-rumped swift's main vocalizations are "a single-noted 'tsee'...and more complex twittering calls such as 'tsee-titi' or 'titi-tsee-trtr'."

ID text from Wikipedia, CC BY-SA 4.0

Photo: David F. Belmonte · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Costa Rican Swift and Pale-rumped Swift.