Saturday, May 25, 2013

Savannah Sparrow

Savannah Sparrow - Passerculus sandwichensis

This sparrow has a wide North American distribution, which is reflected in the name. Savannah refers to the city in Georgia and the species name refers to Sandwich bay in the Aleutian Islands off Alaska. 
The Savannah is the only species in the genus and there are many subspecies, which in the future might be split into distinct species. Some authorities group the Savannah in the genus Ammondramus, which in Alberta includes Baird's, Grasshopper, Le Conte's and Nelson's Sharp-tailed Sparrows. The Savannah tends to flush early and to a perch, whereas Ammondramus sparrows often wait until you are almost upon the bird and then flush to another ground site.
Savannah Sparrows are double and sometimes treble-brooded.

References

The Atlas of Breeding Birds of Alberta. Federation of Alberta Naturalists. 2007.

Baicich PJ, Harrison CJO. Nests, Eggs, and Nestlings of North American Birds. Princeton UP. 2005.

Beadle D, Rising J. Sparrows of the United States and Canada. Princeton UP. 2003.

Fisher C, Acorn J. Birds of Alberta. Lone Pine Publishing. Edmonton. 1998.

Sibley David A. The Sibley Guide to Bird Life and Behavior. Alfred A Knopf, Inc. New York. 2001.

Tudge Colin. The Bird. Crown Publishers. New York. 2008.

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