Anna's Hummingbird
(Calypte anna)

Overview

Summary

© Glen Tepke (www.pbase.com/gtepke)
For additional photos and vocalizations, visit Dendroica. (Link opens in a new window.)

Anna's Hummingbirds are restricted in Canada to the southern coast of British Columbia, though they likely breed occasionally in the southern interior of that province. The species is best monitored by the Christmas Bird Count; numbers on Canadian counts have risen dramatically since 1970, and there has been a large increase throughout its North American range during that time period as well. This increase has likely occurred in part because of the proliferation of hummingbird feeders which provide a necessary nectar source throughout the year (Clark and Russell 2012).

Designations

Population status

Population estimate

Distribution maps

• BirdLife International / NatureServe
• Breeding Bird Survey (BBS): Relative Abundance and Breeding Distribution (1993-2012)

Migration strategy, occurrence

Responsibility for conservation of world population

Conservation and management

The Anna's Hummingbird has greatly expanded its range since the 1930s, moving east and north out of California to cover much of the southwestern United States and the Pacific coast as far north as British Columbia. This expansion is attributed to the increase in non-native flowering trees and shrubs which flower when native species have finished and, at least in urban and suburban areas, the increase in numbers of hummingbird feeders (Clark and Russell 2012). With its expanding population in Canada there are no conservation concerns for this species.

Bird conservation region strategies

Environment and Climate Change Canada and partners have developed Bird Conservation Region Strategies in each of Canada’s Bird Conservation Regions (BCRs). In these strategies, selected species are identified as priorities for one or more of the following reasons:

• conservation concerns (i.e., species vulnerable due to population size, distribution, population trend, abundance, or threats)
• stewardship responsibilities (i.e., species that typify the regional avifauna or have a large proportion of their range or population in the sub-region)
• management concerns (i.e., species that require ongoing management because of their socio-economic importance as game species, or because of their impacts on other species or habitats)
• other concerns (i.e., species deemed a priority by regional experts for other reasons than those listed above or because they are listed as species at risk or concern at the provincial level)

Select any of the sub-regions below to view the BCR strategy for additional details.

References

• Campbell, R.W., N.K. Dawe, I. McTaggart-Cowan, J.M. Cooper, G.W. Kaiser, and M.C.E. McNall. 1990. The Birds of British Columbia, Nonpasserines: Diurnal Birds of Prey Through Woodpeckers. Vol. 2. Royal British Columbia Museum, Victoria, B.C..
• Clark, C.J. and S.M. Russell. 2012. Anna's Hummingbird (Calypte anna), The Birds of North America Online (A. Poole, Ed.). Cornell Lab of Ornithology, Ithaca, New York. Clark, C.J. and S.M. Russell. 2012. Anna's Hummingbird (Calypte anna), The Birds of North America Online (A. Poole, Ed.). Cornell Lab of Ornithology, Ithaca, New York. (Link)