48 KEPOBT OF NEW JERSEY STATE MUSEUM. 



a. Length of bill, 1.45-1.75. POMARINE JAEGER, p. 48 



oo. Length of bill, 1.10-1.30. 



6. Length of nasal shield greater than distance from its end to the tip of 



the upper mandible. PARASITIC JAEGER, p. 48 



66. Length of nasal shield less than distance from its end to the tip of the 



upper mandible. LONG-TAILED JAEGER, p. 49 



36 Stercorarius pomarinus (Temminck). 

 Pomarine Jaeger. 



Adults. Length, 20-23. Wing, 13.50-14. Above, dark slaty ; wing feathers 

 and tail, black ; head, black ; collar round the hind neck and whole side of neck 

 white, tinged with buff or yellow ; under parts, white, except abdomen and 

 under tail-coverts, which are slaty gray ; sometimes the whole breast is mot- 

 tled with dusky, and the under tail-coverts with white. There is also a dusky 

 phase in which the whole plumage is sooty gray. 



Young in first autumn are dark gray banded with buff. 



Apparently occurs well off shore, with more or less regularity, in 

 spring and fall, very rarely coming in to the coast. 



Mr. Scott secured two on the bay at Long Beach, December, 1876, 1 

 and another was shot on the Delaware, at Andalusia, October, 1898, 

 by- Mr. Chas. Vansciver. 2 



Mr. W. L. Baily describes three birds seen at Ocean City, Novem- 

 ber 9th, 1895, which were probably of this species. 



37 Stercorarius parasiticus (Linnaeus). 

 Parasitic Jaeger. 



. Length, 16-21. Wing, 12-13.50. Similar in all plumages to the 

 Pomarine Jaeger, but smaller and rather lighter colored; breast, dull gray, 

 never mottled. 



Regular migrant off shore with the preceding. Mentioned by Turn- 

 bull as of rare occurrence, but there is no definite New Jersey record 

 until March, 1892, when Mr. J. F. Brown 3 examined one killed by 



1 Bull. Nutt. Orn. Club, 1879, p. 227. 



2 Abst. Proc. D. V. O. C., III., p. 8. Colin. Acad. Nat. Sci., Phila. 



3 Abst. Proc. D. V. O. C., II., p. 3. 



