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Physical Description
Average weight: male 3.13 g, female 3.24 g. Resident birds
are slightly larger than those that migrate.
Plumage
Adult male: Metallic bronze-green head and back, iridescent
coppery-red gorget (throat), rufous flanks. Smaller than the
female.
Adult female: Rufous back and sides, white breast, white throat
with some red spots, rounded tail with white outer tips. Larger
than the male. Extremely difficult to differentiate from female
Rufous.
Juveniles: Young of both sexes look like the adult female.
Distribution
Observed in Arizona, coastal California and Channel Islands,
Florida, Georgia, Kansas, Louisiana, Massachusetts (Nantucket), Mississippi, Missouri,
Nevada, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Vancouver Island,
B.C. Some birds migrate between Baja and coastal California,
while others are year-round California residents.
For maps showing population distribution and trends, see
the National Biological Service's North American Breeding
Bird Survey species
account.
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