Tuesday 22 April 2014

         

Rufous Hummingbird 

                                                  الطائر الطنان

Often described as "feisty," the Rufous may have the ideal size-to-weight ratio among North American hummingbirds. This bird outflies all other species, and usually gets its way at feeders at the expense of slower, less-maneuverable hummers. The Rufous has the longest migration route of all US hummingbirds.


Physical Description
Average weight: male 3.22 g, female 3.41 g. Females are larger than males.

Plumage
Adult male: Non-iridescent rufous crown, tail, and sides; back may be rufous, green , or some of each; bright orange-red gorget, white breast. Green-backed Rufous cannot be reliably separated from Allen's in the field without extensive experience and a good view of the spread tailfeathers through a scope.
Adult female: Green back and crown, white breast, streaked throat, rufous sides and base of tail feathers, white tips on outer tail feathers. Very similar to female Allen's and Broad-tailed.

Distribution
Observed in every state and province except Hawaii, Prince Edward Island, and Quebec. There was even one very unusual report from extreme eastern Siberia! The Rufous is the most widely-distributed hummingbird in North America. Winters in Mexico and possibly Panama.
For maps showing population distribution and trends, see the National Biological Service's North American Breeding Bird Survey species account.

No comments:

Post a Comment