EGGS OF NORTH AMERICAN BIRDS. 93 



489. Northwest Crow, Corvus caurinus. Eggs, indistin- 

 guishable from those of No, 488. Breeds on the northwest 

 coast, from California to Sitka, in Ajn-il and May. 



490. Fish Crow, Corvus ossifragus. Eggs, 5 or 6, indis- 

 tinguishable in form and color from those of No. 488, but are 

 smaller; 1.05 -f- 1-50 to 1.10 -j- 1.52. Nests placed in trees. 

 Bi-eeds on the Atlantic coast, from Long Island to Florida, in 

 April and May. 



491. Clark's Nutcracker, PtWcorui/s coZ^/m5^a?^ws. Eggs, 

 2 or .3, oval, grayish green, sparingly sprinkled with grayish ; 

 .90 -f- 1.20 to .95 -(- 1.22. Nests composed of sticks and 

 fibrous plants and grass, lined with fine bark. Placed in trees. 

 Breeds in Western North America, from Arizona to Sitka, and 

 east to the plains, in April. 



492. PiNox Jay, Cyanocephalits cyanocephalus. Eggs, 3 

 or 4, oval, greenish white, profusely spotted everywhere with 

 pale brown and purple; .87 -|- 1.23 to .88 -f- 1.27. Nests 

 placed in trees, composed of sticks and bark, lined with finer 

 bark. Breeds in the Rocky Mountain region, westward to the 

 Cascade range, and Sierra Nevada, and from Mexico north 

 into British America, in March and April. 



Family XL VIII. — STURNID^. Starlings. 



Eggs, usually oval in form, seldom plain, but generally 

 handsomely spotted, and often elaboi-ately lined. Nests, as a 

 rule, in American species, placed in trees, but occasionally on 

 the ground. 



493. Starling, Sturnns vulgaris. Eggs, 4 or 5, oval, pale 

 blue, imspotted: .86 -f- 1.20 to .88 -f 1.25. Nests composed 

 of twigs, grass, and similar material, placed in hollow trees, in 

 holes of cliffs, beneath the eaves of buildings, in church stee- 

 ples, etc. Extralimital. Breeds in Europe and Northern 

 Asia ; bird accidental in Greenland. 



494. Bobolink, Bolichonyx orizyvorus. (Type, Plate IX.) 

 Eggs, 4 to 6, oval, ashy white or drab, spotted and blotched, 



