140 



RIRDS IN THEIR RELATIONS TO MAN. 



other weedy plants, the latter forming fully one-half of their 

 food. The army-worm is perhaps the most destructive in- 

 sect which the swamp-sparrow is likely to assist in checking, 

 because the insect develops especially in the marsh lands 

 where the birds live. 



"The DICKCISSEL," writes Dr. Judd, in his admirable mono- 

 graph, 1 "formerly raised its broods over a considerable portion 



THE DICKCISSEL. 

 (After Biological Survey.) 



of the United States east of the Rocky Mountains ; but two 



or three decades ago it abandoned the Eastern States and now 



rarely breeds east of the Allegheny Mountains. In autumn 



migrates to Central and South America. In some localities 



is known as the little meadow-lark, because its coloring is 



the meadow-lark, even to the black locket on the 



Bull. No. 15, U. S. Bio- 



