80 EGGS OF NORTH AMERICAN BIRDS. 



430. Costa's Humming-bird, Trochilus costm. Eggs, .30 

 -\- .50 to .32 -|- .52. Nests composed of yellowish down cov- 

 ered with lichens, and placed in trees. Breeds in Southern 

 California, Arizona, and Western Mexico, in April and May. 



431. Anna's Humming-bird, Trochilus anna. Eggs, .40 

 -j- .60 to .42 -f- .62. Nests similar to those of No. 428, and are 

 placed in trees and bushes. Breeds in Southern California, 

 Southern Arizona, and Mexico, in March, April, and May. 



431a. Floeesi's Humming-bird, Trochilus Jtoresi. Eggs, 

 unknown. Recorded from California. Breeds southward. 



432. Broad- TAILED Humming-bird, Trochilus platycercus. 

 Eggs, iiidistinguishable from those of No. 428, and the nest is 

 composed of similar material to that of other western species, 

 and placed in trees. Breeds in the rocky plateau region, south 

 to Guatemala, in June and July. 



433. Rufous Humming-bird, Trochilus rufus. Eggs, .33 

 -{- .45 to .35 -\- .48. Nests composed of mosses and other soft 

 material, and j)laced in trees and bushes. Breeds from the 

 Rocky Mountains to the Pacific, north to Sitka, south into 

 Mexico, in May and June. 



434. Allen's Humming-bird, Trochilus alleni. Eggs, in- 

 distinguishable from those of No. 433, Breeds in the Pacific 

 coast, north to British. Columbia, east to Southern Arizona. 



435. Heloise's Humming-bird, Trochilus heloisa. Eggs, 

 probably unknown. Breeds in Eastern Mexico and Southern 

 Texas. 



436. Calliope Humming-bird, Trochilus calliope. Eggs, 

 similar to those of other species, but are very much smaller : 

 .31 -|- .47. Breeds in the mountains of the Pacific slope, from 

 British Columbia south to Lower California, and east to 

 Montana, Nevada, and New Mexico, in June and July. 



437. Lucifer Humming-bird, Trochilus lucifer. Eggs and 

 nest, unknown. Breeds in Mexico and Southern Arizona. 



43S, Rleffee's Humming-bird, Amazilia fuscicaudata. 

 Eggs and nest, unknown. Breeds in the Lower Rio Grande 



