BIRDS OF N1-:\V YORK II7 



Joe's lake, Herkimer co., N. Y. Aug. 27, 1886. Juvenal. Ralph He Bagg, p. 104 



Niagara river, N. Y. Sept. 18S7. Juvenal. Harry Lansing 



Little Gull Island, L. L Aug. 6-16, 1888. (common). Butcher, Auk, 6: 125 



Sept. 18, 188S. (50). (Field). 



Sept. 20, 1888. (is). 



Aug. 24, 1889. (2). 

 Canoe lake, L. L Aug. 25, 1890. " 



South Oyster Bay, L. L Sept. 10, i8gi. 6^. " 



Rockaway, L. L July 29, 1893. (3). " 



Jlontauk, L. 1. Xuv. 15, 1894. " 



Buffalo, N. Y. Oct. 2, 1895. James Savage 



Lake Ontario, Monroe co., N. Y. Nov. 10, 1897. George Guelph 

 Buffalo, X. Y. About Oct. 25, 1907. (Grieb). James Savage 

 Long Island, N. Y. "Apr. 30 (Rockaway) ; Aug. 6-Nov. 9 (Amity ville)." Braislin, p. 35 



Stercorarius longicaudus Vieillot 



Long-tailed Jaeger 



Plate 4 



S t e r c o r a r i II s longicaudus Yieillot. Nou\-cau Dictionnaire. 18 19. 30: 157 

 L e s t r i s b u f f o n i (.'') DeKay. Zool. N. Y. 1844. pt 2, p. 314, fig. 291 

 Stercorarius longicaudus A. O. U. Check List. Ed. 2. 1895. ^^"- 3^ 



lon'gicau'dus. Lat., longus, long, and catida, tail 



Description. Colors and color phases practically the same as in Parasitic 

 and Pomarine jaegers, but the dark phase is apparently of rare occurrence. 

 The tarsus leaden blue, lil)iae and feet black. The shafts of iJie first 2 or 3 

 primaries white, tlie others brownish, an abrtipt change from white to brown 

 at the third primary. 



Length 17-23 inches; wing 11. 75-1 2. 5; tail 14-16, the central feathers 

 projecting 8-10 inches in the adult; bill 1.1-1.3; tarsus 1.5-1.8; tibia bare 

 .75 ; middle toe and claw i. 4-1. 65. ^'oung smaller, the central tail feathers 

 projecting only a short distance, making the total length much less than 

 recorded for the adult, wing 9.5-1 1.25. 



Distinctive marks. Adult birds of this species are easily recognized 

 b}' the excessive elongation of the central pair of tail feathers, the shorter 

 and weaker bill and lighter bulk of bod}-. The young are also smaller than 

 those of the Parasitic jaeger and the mottling and marbling is of a 

 prevailing leaden grayish ; the tarsus is relativeh' longer than in p a r a s i t- 

 i c u s , being longer than the middle toe and its claw, while the reverse 



