S. BUFFONI I LONG-TAILED, OR ARCTIC JAEGER. 345 



1.87 ; bill, 1.33-1.50 ; tail. 5.00-6.00, the long feathers up to 9.00. 

 Adult : upper parts, including top of the head and slight occipi- 

 tal crest, and crissum, blackish-brown, deeper on wings and 

 tail ; chin, throat, sides of head, neck all round and under parts 

 to the vent, white, the sides of the neck pale yellow ; quills and 

 tail-feathers with whitish shafts ; feet blue and black. Younger : 

 clouded below with dusky in variable pattern and amount. 

 Young : barred crosswise with rufous and dusky ; feet mostly 

 yellow. There is a fuliginous stage, precisely as in the last 

 species. 



The commonest of the Jaegers, yet not one of the 

 abundant sea-birds of our coast. Linsley has it from 

 Bridgeport, Conn., and Merriam cites another instance 

 of its occurrence in this State, a specimen in the collec- 

 tion of Mr. J. H. Sage, of Portland, having been killed 

 at that place in the fall of 1875 (Rev. B. Conn., 1877, p. 



LONG-TAILED, OR ARCTIC JAEGER. 



STERCORARIUS BUFFONI (Boie) Cones. 



Chars. Middle tail-feathers finally projecting eight to ten inches, 

 very slender and almost filamentous in the greater part of their 

 extent. In size smaller than the foregoing ; wing about 12.00; 

 tail about 6.00 ; tarsus, 1.50-1.70; bill. 1.00-1.12. Coloration as 

 in S. parasiticus, and changes of plumage the same. 



Occurring off the coast in fall and winter, with other 

 species of the genus. A fresh case of its presence 

 on our southern border is given by Merriam, a 

 specimen taken on the Community Lake, at Walling- 

 ford, Conn., August 30, 1873 (Rev. B. Conn., 1877, 

 P- 



