or 



594 Field Museum of Natural History — Zoology, Vol. IX. 



in favorable localities. Mr. John F. Ferry found four young birds of 

 this species unable to fly near Woodruff, 

 Vilas Co., Wisconsin, on June 20, 1908. 



The song is characteristic and very 

 pleasing, a clear musical whistle, a sug- 

 gestion of which may be had by playing 

 the following notes on a fife : 



The nest is on the ground or in low trees or bushes. The eggs are 

 4 to 5 in number, pale brown or greenish blue, spotted and speckled 

 with reddish brown, and measure about .82 x .60 inches. 



Genus SPIZELLA Bonap. 



259. Spizella monticola (Gmel.). 



Tree Sparrow. 



Distr. : " Eastern North America, west to the Plains, and from the 

 Arctic Ocean south, in winter, to the Carolinas, Kentucky, and east- 

 ern Kansas. Breeds north of the United States, east of the Rocky 

 Mountains." (A. O. U.) 



Adult: Top of head, rufous brown, a gray stripe over the eye and 

 a narrow rufous stripe extending from the eye backward; a short 



Tree Sparrow. 



narrow streak of rufous on side of throat, from base of lower mandi- 

 ble; back, streaked with rufous brown, black and pale buff; rump, 

 brownish gray; breast, grayish white, with an obscure dusky mark 

 or small irregular spot in the middle; belly, dull white ; sides of body, 

 pale brownish buff; wing coverts, with black centres broadly edged 

 with rufous and tipped with white, forming a noticeable white wing 



