— 61 — 



of a colony on the Hudson at Piermont, is, so far as known, con- 

 fined entirely to the salt marshes of our coast Group, 

 Gallery, between Cases H and I.) 



245. Ammodramus caudacutus nelsoni Allen Nelson's 



Sharp-tailed Sparrow. (549*7.) — Breeds in the marshes of the 

 interior from northern Illinois northward to Dakota and Manitoba; 

 occurs as a migrant on the Atlantic coast, and winters from South 

 Carolina to Texas. This species is known here only as a rather 

 rare fall migrant in the Hudson River Valley, occurring from the 

 latter part of September to the latter part of October. 



246. Ammodramus caudacutus subvirgatus Dwight. 



Acadian Sharp-tailed Sparrow. (549/;.) — "Marshes of southern 

 New Brunswick, Prince Edwards Island and probably Nova Scotia, 

 and southward in migration along the Atlantic coast " {Dwight). 

 This bird occurs with the preceding. 



247. Ammodramus maritimus Wtls.). Seaside Sparrow. 

 — Atlantic coast, breeding from North Carolina to Massachu- 

 setts, and wintering from Virginia to Georgia. This is an even 

 more abundant summer resident than the Sharp-tailed Finch and, 

 like it, is confined exclusively to our coasts, with the exception of a 

 colony in the Piermont marshes. (See Group, Gallery, between 

 Cases H and I.) 







Fig. 23. Seasidk Sparrow. 



248. Chondestes grammacus [Say). Lark Sparrow. (552.) 

 ■Interior of North America, eastward to Illinois, breeding from 



