172 



Distinctions. The contrasting light buff median stripe, vinaceous nape, and dark 

 brown back. 



Nesting. On ground, in nest of fine grass. 



Distribution. Central North America. A prairie form of only accidental occurrence 

 within the limits covered by this work. 



The species has been recorded only once in eastern Canada, at Toronto. 

 Owing to its mouse-Hke habits it is most difficult to find or to recognize 

 when seen, and, therefore, may be more common that it is thought to be. 



549. 1. Nelson's Sharp-tail. fr. — le pinson a queue aigue. Passerherbulus 

 nelsoni. L, 5 • 9. A small grass sparrow. Above, median line of crown slaty-blue bordered 

 with dark brown, with an ochre line over eye. A faint slaty and olive band across nape 

 and shoulders. Back sharply striped with rich brown and hght buff with a light slaty 

 overwash. Below, white with ochre breast extending more or less to the cheeks and 

 flanks and lightening on the throat. Breast sometimes, and flanks always marked with 

 indistinct darker stripes. 



Distinctions. Slaty median crown stripe and long, strong stripes on back. 



Field Marks. The general strong buff or yellow coloration below, the yellow line above 

 the eye, and the faint streaking of breast. 



Nesting. On ground; in nest of fine grass. 



Distribution. Eastern America, mostly in northern United States and southern 

 Canada. The type form is confined to the prairies and the other to the Atlantic coast. 



SUBSPECIES. Nelson's Sparrow is divided into two subspecies, the type form, 

 Nelson's Sharp-tailed Sparrow, a prairie race; and the Acadian Sharp-tailed Sparrow P.n. 

 subvirgatus, an extreme eastern race. The Acadian Sharp-tail is confined to the salt marshes 

 of the east coast of Prince Edward Island and below the gulf of St. Lawrence. Its breast 

 and throat are lighter, buff rather than ochre coloured, and distinctly though faintly 

 streaked on breast. The colouring of the back is fainter and more diffused and the slaty 

 median hne wider and in less contrast to the brown. There is little chance of confusion 

 between them for the races can be divided geographically with considerable certainty. 

 Nelson's Sharp-tail is only of casual and accidental occiurence in the Great Lakes region, 

 whereas the Acadian is practically confined to the vicmity of salt water. 



The Sharp-tailed Sparrows are marsh-haunting birds, running and 

 hiding in the grass and refusing to take wing until absolutely forced. 



552. Lark Sparrow. Chondestes grammacus. L, 6-25. A very striking and 

 conspicuously marked sparrow. Above, striped with brown and buffy brown; below, 

 white with buffy flanks. Crown, chestnut-brown with conspicuous light median line; 

 ear coverts chestnut-brown in strong contrast to the white face ; and three sharp black 

 lines, one through eye, one from lower mandible to ear coverts, and one down sides 

 of throat. Outer tail feathers and ends of all except the middle ones, white. 



Distinctions. The bright reddish brown ear coverts contrasting with black and white 

 face are certain distinguishing characters of the species. 



Field Marks. The strongly marked head and face and the large amount of white in 

 the tail make easily recognized field marks. 



Nesting. In low trees or bushes, in nest of grasses hned with fine grass, rootlets, and 

 hairs. 



Distribution. The Mississippi valley westward. The Eastern Lark Sparrow, the 

 type form, extends from the Great Plains east and north into southern Ontario. Another 

 subspecies occurs in the west. 



SUBSPECIES. The eastern subspecies of this bird is the Eastern Lark Sparrow, 

 the type form of the species. 



The Lark Sparrow is rare in eastern Canada. It is to be looked for in 

 open brushy wastes and along the wooded edges of fields. 



553. Harris' Sparrow. Zonotrichia querula. L, 7-50. A large sparrow, streaked 

 with brown and ashy brown, above; white, below. Crown, face, throat, and front neck 

 solid black fading into stripes on flanks. 



Distinctions. In adults, the black face as if dipped in ink which had spread over 

 crown and throat. 



