Passerculus sandwichensis Passerculus sandwichensis là một loài chim trong họ Emberizidae_Tham khảo BULLET Byers_Clive_Olsson_Urban Curson_Jon 1995 Sparrows and Buntings_A_Guide to the Sparrows and Buntings of North_America and the World_Houghton_Mifflin_Boston ISBN 0 395 73873 3 Liên_kết ngoài BULLET Government of Canada Species at Risk_Public_Registry_Savannah sparrow BULLET Savannah sparrow species account Cornell_Lab of Ornithology_BULLET_Savannah sparrow Passerculus sandwichensis USGS Patuxent_Bird_Identification_InfoCenter
Passerculus sandwichensis