Species: Calypte anna
Anna's Hummingbird
Species
Show on Lists
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Aves
Order
Apodiformes
Family
Trochilidae
Genus
Calypte
NatureServe
Classification
Other Global Common Names
Colibri d'Anna - Colibrà Cabeza Roja
Informal Taxonomy
Animals, Vertebrates - Birds - Other Birds
Formal Taxonomy
Animalia - Craniata - Aves - Apodiformes - Trochilidae - Calypte - (AOU 1983).
Ecology and Life History
Migration
true - true - false - May ascend to montane regions in summer after breeding. Unusual among hummingbirds in remaining in U.S. in winter.
Non-migrant
true
Locally Migrant
true
Food Comments
Feeds on nectar, tree sap (e.g., at sapsucker holes), and small insects and spiders (caught in air; gleaned from tree trunks). Nectar sources include EUCALYPTUS, NICOTIANA, AGAVE, CASTILLEJA, DIPLAUCUS, SILENA, RIBES, ARCTOSTAPHYLOS, etc.
Reproduction Comments
Breeding begins in late December. Clutch size is 2. Incubation, by female, lasts 14-19 days. Young are tended by female, leave nest in 18-26 days, independent in 1-2 weeks. Priduces two broods annually in many areas (Johnsgard 1983).
Ecology Comments
Males occupy territories for extended period; territories not necessarily related to food supply and quality (Powers 1987). Apparently has close coevolutionary relationship with RIBES SPECIOSUM (Stiles 1972).
Length
10
Weight
4
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-12-02
Global Status Last Changed
1996-12-02
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S4&US.AZ=S5&US.CA=SNR&US.ID=__&US.NV=__&US.NM=__&US.OR=S4&US.TX=__&US.WA=S4" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
BREEDS: western Washington, western Oregon, California (west of Sierra; Humboldt and Tehama counties south), northwestern Baja California, and southern Arizona (north to Phoenix, Superior). Most breeding occurs in California. May breed in southwestern British Columbia and western Texas. WINTERS: southwestern Oregon to central Baja, east to southern Arizona, northern Sonora, northern Chihuahua.