Anna's hummingbird
Anna's hummingbird (Calypte anna) is 9 to 10 centimetres (3.5 to 3.9 in) long.
| Anna's hummingbird | |
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| Adult male in-flight, colouring unclear | |
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| Genus: | Calypte
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| Calypte anna | |
It has a bronze-green back, a light grey chest and belly, and green flanks. Its bill is long, straight and slender. The adult male has an iridescent crimson-red crown and throat, and a dark, slightly forked tail. Anna's is the only North American hummingbird species with a red crown. Females and young have a green crown, a grey throat with some red markings, a grey chest and belly, and a dark, rounded tail with white tips on the outer feathers.
These birds feed on nectar from flowers using a long tongue. They also eat small spiders and insects caught in flight. While collecting nectar, they also help in plant pollination. This species sometimes eats tree sap.
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Anna's Hummingbird Media
Female Anna's hummingbird in nocturnal torpor during winter; −8 °C (18 °F), near Vancouver, British Columbia. The bird remained in torpor with an unchanged position for more than 12 hours.
Song of a male Anna's hummingbird
A female incubates eggs in a camouflaged nest.
Two nestlings are fed by a female hummingbird.
Female Anna's Hummingbird - Calypte anna - feeding, Los Angeles, CA
Male Anna's Hummingbird
Hummingbird Calypte anna in ggp 15n
Calypte anna taken at San Francisco Botanical Garden
