The oasis hummingbird (Rhodopis vesper ) is a species of hummingbird in the family Trochilidae.It is found in coastal regions of Peru in a 100–200 km wide strip that extends the length of Peru's coastline, about 3000 km. It is also found in an adjacent population in Chile; a second disjunct population in coastal Chile exists 2000 km to the south, in a 75 by 200 km coastal strip.
The oasis hummingbird's natural habitats are subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, and subtropical or tropical high-altitude shrubland.
In zoology, a nectarivore is an animal that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of the sugar-...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
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Soaring birds can maintain flight without wing flapping, using rising air currents. Many gliding birds are able to "lock" their extended wings by m...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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starts withThe oasis hummingbird is a mid-sized hummingbird with an average length of 13–13.5 cm for an adult male and 11–11.5 cm for an adult female. They have an olive green colored back and grey to white colored breast with a distinctive cinnamon colored rump. They have a long, decurved, black bill. They are sexually dimorphic with males having a brightly iridescent gorget that is blue to red in color and a long forked tail. Females have much shorter tail feathers and no iridescent gorget.
The males perform various courtship displays in order to attract mates. They have what is called a shuttle display where they hover about 10–15 cm in front of a female, sing, flare their bright gorget and move up, down, left and right in an attempt to impress the potential mate. They spread their tail feathers while doing this and wave them side to side. During normal flight, they beat their wings constantly at a fairly regular frequency. High speed video has shown that while performing their shuttle display, the males actually stop fluttering for just a fraction of a second to tuck their wings away causing them to descend slightly before recommencing their wing beating. This makes them appear to bound in place. They also have a dive display where they will soar into the air and swoop down by the females while making a sharp whistling sound with their tail feathers.
As of now, little is known about the life cycle of the oasis hummingbird. Like most hummingbirds, the female is solely responsible for the incubation and rearing of the young while the male leaves immediately after copulation. The incubation period is about 16 days and the nestling period about 27. The average clutch size is 2 eggs and the dimensions of an egg are 13.8x9.2 mm.
