344 LARID.E : JAEGERS, GULLS, TERNS, ETC. 



POMARINE JAEGER. 



STERCORARIUS POMATORHINUS (Temm.) Lawr. 



Chars. Bill and tarsi relatively longer than in the foregoing ; 

 central rectrices finally projecting far beyond the rest. Smaller 

 and less robust. Middle tail-feathers finally projecting about 

 four inches, broad to the tip. Length about 20.00 ; wing, 14.00 ; 

 bill, 1.50-1.75; tarsus about 2.00. Adult: back, wings, tail, 

 crissum and lower belly blackish-brown, deepening on the 

 top of the head and slight occipital crest to brownish-black ; 

 below, from bill to belly, and neck all round, pure white, except- 

 ing acuminate feathers of sides of neck, which are pale yellow ; 

 quills whitish basally, their shafts largely white ; tarsi above 

 blue, below, with the toes and webs, black. Not quite adult : 

 as before, but breast with dark spots, sides of the body with dark 

 bars, blackish of lower belly interrupted ; feet black. Younger : 

 whole under parts, with upper wing and tail-coverts, variously 

 marked with white and dark ; feet blotched with yellow. Young : 

 whole plumage transversely barred with dark brown and rufous ; 

 feet mostly yellow. Dusky stage (coming next after the barred 

 plumage just given ?) : fuliginous, unicolor ; blackish-brown 

 all over, quite black on the head, rather sooty-brown on the 

 belly ; sides of the neck slightly gilded. 



Of rare occurrence along the coast in autumn and 

 winter ; Merriam could give no Connecticut instance. 

 The bird is known to have been taken in Pennsylvania ; 

 according to Mr. Boardman it is not uncommon at 

 Grand Menan. 



PARASITIC, OR RICHARDSON'S JAEGER. 

 STERCORARIUS PARASITICUS (Briinn.} Gray. 



Chars. Middle tail-feathers finally projecting about four inches, 

 tapering, acuminate; smaller; wing, 12.00-13.00; tarsus, 1.75- 



