Dendroica caerulescens. 
Descriptions of First Plumage of Cer¬ 
tain North Am, Bbs. Wm. Brewster. 
27. Dendrceca cserulescens. 
First plumage: male. Remiges and reetrices as in autumnal males, the 
former slightly paler in color. Rest of upper parts, including the wing- 
coverts, dark olive-brown ; sides of head very dark brown ; lores black ; 
throat, jugulum, lower eyelids, and a very conspicuous supra-orbital line, 
pale buff; breast and sides ashy, tinged with olive. Abdomen, anal re¬ 
gion, and crissum strong sulphur-yellow. White spot on base of prima¬ 
ries fully developed. 
First plumage: female. Remiges and reetrices as in autumnal female. 
Rest of upper parts, including wing-coverts and sides of head, light olive- 
brown. Lores dull black. Superciliary line, both eyelids, throat, jugulum 
abdominal and anal regions, with crissum, light buff. Breast and sides 
olive, tinged with buff. Spot on base of primaries dirty-wliite. From two 
specimens, male and female, in my collection, shot with parents at Upton, 
Me., August 11, 1873. The male above described shows a few black 
feathers on one side of the throat. Several adult females in my collec¬ 
tion, taken both in spring and fall, lack the white wing-patch altogether. 
Others have it but faintly indicated. 
Bull. N. O.O, 3, April, 1878. p. ST 
f7- 
