The Migration of North American Sparrows 



SEVENTEENTH PAPER 



Compiled by Professor W. W. Cooke, Chiefly from Data in the Biological Survey 



With Drawings by Louis Agassiz Fuertes 



(See frontispiece) 



CANON TOWHEE 



This non-migratory species has its center of abundance in Arizona and 

 New Mexico, from which a few range north as far as Boulder, Colorado, east 

 into western Texas, and south for a short distance into Mexico. 



CALIFORNIA TOWHEE 



This is one of the most abundant and characteristic birds of California. 

 It is a permanent resident from the foothills of the Sierra Nevada to the coast; 

 a few ranging north to southwestern Oregon. The form occurring in south- 

 western California and northern Lower California has been separated as a 

 subspecies, Pihilo cr is sails senlcula, Anthony's Towhee. 



ABERT'S TOWHEE 



Abert's Towhee is an abundant permanent resident of southern Arizona 

 and of the deserts of southeastern California and northeastern Lower Cali- 

 fornia. A few range north in the Colorado Valley to southeastern Nevada 

 and southwestern Utah, and the species is also found in southwestern New 

 Mexico. 



Notes on the Plumage of North American Sparrows 



SIXTEENTH PAPER 

 By FRANK M. CHAPMAN 



(See frontispiece) 



Cahon Towhee (Plpllo fuscus mesoleucus, Figs, i and 2). — The Canon 

 Towhee is a near relative of the California Towhee, from which it differs in 

 being somewhat smaller, and generally paler, the throat and under tail-coverts 

 being buff rather than cinnamon, the belly being whiter, while most specimens 

 have a blackish blotch on the lower breast not present in the California Towhee. 

 Both species appear to agree in regard to their molts, and their seasonal changes 

 in plumage are almost equally limited, though summer specimens of the 

 Canon Towhee have the reddish brown crown-cap more pronounced and 

 better defined. 



As with the other brown Towhees, the male and female of this species 

 are alike in color, the young differs from them but slightly and there are no 



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