Oasis Hummingbird vs Red-billed Emerald

Oasis Hummingbird

Rhodopis vesper

Tiny4 gShrubland

The oasis hummingbird is 11 to 13.5 cm (4.3 to 5.3 in) long and weighs about 4 g (0.14 oz). Both sexes have a long, black, decurved bill. The nominate subspecies is larger and has a longer and stouter bill than the other two, but the three are otherwise alike. Both sexes have olive green upperparts with a cinnamon rump and uppertail coverts. Females have a small white dot behind the eye and males a longer white stripe. Males have an iridescent gorget that ranges from rosy violet to purple with turquoise to the rear. Their underparts are dull white with a dull green wash on the flanks. Voice: The oasis hummingbird's vocalizations have not been extensively recorded. What appears to be its song is "tzee-tzee-dee-dee, first ascending, then descending". Calls include a "melodious series of tick and tzee notes given at variable speeds and tone", "a rapid, thin liquid chatter", and ""a rich chew note".

ID text from Wikipedia, CC BY-SA 4.0

Photo: Jan Ebr · CC BY 4.0

Red-billed Emerald

Chlorostilbon gibsoni

Tiny3 gWoodland

The red-billed emerald is 7.6 to 9 cm (3.0 to 3.5 in) long and weighs about 2.8 g (0.099 oz). The males of all three subspecies have a straight bill with a mostly red mandible. The females' mandibles are red at the base. The bills are about 1.3 cm (0.51 in) long. Males of the nominate subspecies have dark bronze-green upperparts and a deeply forked blue-black tail. Their faces and underparts are glittering green to golden green. Nominate females are shining green above and plain gray below with dusky cheeks and a short white line behind the eye. Voice: The red-billed emerald's song is "a continuous series of wiry trilled notes, 'wirrr...wirrr...wirrr...'". It also makes "high-pitched penetrating 'tseeee' and a reedy 'tzreee'" calls.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Ron Knight from Seaford, East Sussex, United Kingdom · CC BY 2.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Oasis Hummingbird and Red-billed Emerald.