YAS KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
Part 6. The following species have no red, blue, green, or yellow on 
the underparts; throat or chin, not black, and the breast, distinctly streaked 
or spotted : — 
Crown feathers, blackish, narrowly edged with light brown; an imperfect 
buff white line through centre of crown; tail, usually under 2.20; wing, 
usually under 2.90 (more or less yellow over and in front of eye in some 
plumages) ; outer tail feathers, not shorter than middle ones; a black streak 
on sides of upper throat; back, streaked; breast, streaked with dark brown; 
outer web of outer tail feather, edged with dull white. 
Savanna Sparrow. 
Ammodramus sandwichensis savanna. 
See No. 410. 
Rump and upper surface of tail feathers, rufous brown. 
Fox Sparrow. 
Passerella iliaca. 
See No. 439. 
g, usually over 2.90; tail, usually over 2.20; breast, streaked with pale 
brown; crown feathers, with small black centres edged with buff and 
gray; outer tail feathers, not shorter than middle ones; no black streak on 
sides of upper throat; back, pale brown, tinged with gray and more or less 
streaked; very little or no white on outer tail feathers, 
Wing 
Ipswich Sparrow. 
Ammodramus princeps. 
See No. 409. 
