154 EGGS OF NORTH AMERICAN BIRDS. 



America, from Southern Massachusetts, where it is not very 

 common, northward, in June. 



760. Red-wing Thkush, Tardus iliacus. Eggs, 4, oval, 

 pale green, spotted and blotched with reddish brown ; .81 -|- 

 1.06. Nests placed in bushes, composed of sticks, Aveeds, and 

 coarse grass, mixed with a little clay. Extralimital ; breeds 

 in the northern parts of the Old World. Bird accidental in 

 Greenland. 



761. American Robin, Merula migratoria. Eggs, often 3, 

 commonly 4, rarely 5, and very rarely 6, oval, greenish blue, 

 generally unspotted, but rarely marked with dots of reddish ; 

 .80 -f- 1.05 to .85 -|- 1.26. Nests composed of mud and grass, 

 placed on a platform of coarse grass, lined with grass. Breeds 

 in Eastern North America, west to the Rocky Mountains, 

 from near the southern border of the United States northward 

 to the Arctic coast, in April, May, and June, depending on 

 latitude. 



761a. Western Robin, 3Ierula •migratoria propioiqua. 

 Eggs, indistinguishable from those of No. 761. Breeds in 

 Western United States, from the eastern base of the Rocky 

 Mountains westward, in May. 



762. Saint Lucas Robin, Merula conjlnis. Eggs, unknown. 

 Breeds in Lower California. 



763. Varied Thrush, Hesperocichla 7icevia. Eggs, 4 or 5, 

 oval, bluish green, distinctly spotted and blotched with dark 

 umber brown ; .78 -\- 1.10 to .80 -}- 1.13. Nests placed in 

 bushes, composed of twigs, grass, and moss. Breeds in the 

 Pacific coast region of North America, from Behring's Strait 

 to California, in June. 



764. Red-spotted Bluethroat, Cyanecula suecica. Eggs, 

 4, oval, greenish, so thickly spotted with olive brown as 

 to obscure the ground color ; .50 -|- .75 to .55 -f- .78. Extra- 

 limital ; breeds in the northern parts of the Old World. Bird 

 casual in Alaska. 



765. Wheatkak, Saxicola c&nanthe. Eggs, 4, oval, pale 



