EGGS OF NORTH AMERICAN BIRDS. 87 



471. Vermilion Flycatcher, Pyrocephalus ruheneus mex- 

 icanus. Eggs, 3 or 4, short oval, creamy white, spotted and 

 blotched, usually in a ring around the larger end, with rounded 

 markings of brown and yellowish brown and pale lilac ; .70 -}- 

 .50 to .73 -\- .53. Nests composed outwardly of small twigs, 

 lined with hairs and a few feathers, and the whole outer por- 

 tion is often coated with lichens. Breeds in Southern Arizona 

 and tlic valley of the Lower Rio Grande, Texas, southward. 



472. Beardless Flycatcher, OrnitJiion imberhe. Eggs, 

 unknown. Breeds in the valley of the Lower Rio Grande, 

 Texas, south into Eastern Mexico. 



472a. Ridgway's Flycatcher, Ornithion imberhe ridgxcayi. 

 Eggs, unknown. Breeds in Southern Arizona and Western 

 Mexico, in May. 



Family XLVI. — ALAUDIDtE. Larks. 



Eggs, spotted, usually so profusely as to obscure the ground 

 color ; placed in nests composed of grass and other similar 

 material lined with soft grasses and placed on the ground. 



473. Skylark, Alauda arvensis. Eggs, 4 or 5, oval, gray- 

 ish white, sprinkled and blotched profusely with ashy brown ; 

 .70 + .93 to .72 -\- .95. Extralimital ; breeds in Europe and 

 Asia ; bird accidental in Greenland and the Bermudas. 



474. HoRXED Lark, Otocoris alpestris. Eggs, 4 or 5, oval, 

 varying from purplish white to dark gray, profusely spotted, 

 usually finely, but occasionally coarsely, with grayish or olive 

 brown; .70 -{- .93 to .75 -|- .95. Breeds in Northeastern North 

 America, from Labrador northward, in Greenland, and the 

 northern parts of the Old World, in May. 



474a. Pallid Horned Lark, Otocoris alpestris leucolenia. 

 Eggs, indistinguishable from those of No. 474. Breeds in the 

 interior of British America and Alaska. 



4745. Prairie Horned Lark, Otocoris alpestris praticola. 

 Eggs, indistinguishable from those of No. 474. Breeds in 



