PERCHING BIRDS 



their egg in the nest of some other bird from 



the size of a Robin down, probably the greater 

 number being in Warblers 

 and Sparrows nests; the 

 eggs are hatched and the 

 young cared for by the un- 

 fortunate birds upon which 

 they are thrust. The eggs 

 are white, spotted and 

 White speckled all over, more or 



less strongly with brown and yellowish brown: 



size .85 x .64. 



(•95a. Dwarf Cowbird. Molothrus ater 

 ohscurus. 



Range.- Southwestern United States and 

 Mexico, wintering south of our borders. 



This variety is like the last, but slightly 

 smaller. The nesting habits of the two are 

 identical and the eggs are indistinguishable. 

 It is believed that Cowbirds do more damage to 

 the smaller birds than all other dangers com ,. , , 



bined, as their young being larger and stronger 



either crowd or smother the other young or else starve them by getting most 

 of the food brought to the nest. 



HHi. Red-eyed Cowbird. Tangavius ceneus involucratus. 



Range. — Mexico; north in summer to the Lower Rio 

 Grande in Texas. 



This parasite is larger than the Cowbird, being 9 inches 

 long, and is glossy black with brassy reflections on the 

 upper and under parts. They are abundant in southern 

 Texas where they deposit their eggs in the nests of other 

 birds, apparently preferring those of Orioles; their eggs 

 are pale bluish green, unmarked; size .90 x .70. 



I. iwlii I'lu' 



4tk* I 



Y.II..U I. 



\\)~ . Yellow headed Blackbird. 



"Kanthocephalua xanthocephalus. 



Flange. North America west of the Missis- 

 sippi to eastern California, breeding from the 

 southern parts of the United States north to 

 British Columbia and Hudson Ray and winter- 

 ing from southern United States downward. 



This large handsome 

 Blackbird with brighl yel- 

 low head and breasl is 

 verj abundanl in some 

 parts oi ih> west, where 

 thej nest in large colonies 



lUghS and marshes. 



being especially abundanl 



, i.i, i \i ,.; ' ■ ra vi si i wiit.' 



m the Dakotas and Mam 



toba. The uestS are made of strips of rushes. 

 -killlulh woven together and attached to up- 

 right cane near the surface of the water. Thej 

 ia> from tour to having a grayish 



white ground color, finelj Bpecked and spotted 

 with shade ,,i brown and gray; slxe LOO x. 70, 



