Petrochelidon lunifrons. 
Descriptions of First Plumage of Cer¬ 
tain North Am, Bbs. Wxa. Brewster. 
45. Petrochelidon lunifrons. 
First plumage: male. Top of head, back, and scapulars dark brown ; 
collar around nape, dull ashy, tinged anteriorly with rusty. Rump as in 
adult, but paler; forehead sprinkled with white, and with a few chestnut 
feathers. Secondaries broadly tipped with ferruginous. Throat white, a 
few leathers spotted centrally with dusky. Breast and sides ashy, with a 
rusty suffusion, most pronounced on the latter parts. A very small area 
of pale chestnut on the cheeks. From a specimen in my collection taken 
at Upton, Me., July 27, 1874. 
Bull. N. O.O, 3, April, 1878 . p, ^3- 
