BIRDS OF NEW YORK II7 



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



Niagara river, N. Y. Sept. 1887. Juvenal. Harry Lansing 



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



Sept. 18, 1888. (50). (Field). 

 « Sept. 20, 1888. (is). 



Aug. 24, 1889. (2). 

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



South Oyster Bay, L. L Sept. 10, 1891. c?. " 



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



Montauk, L. L Nov. 15, 1894. " 



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

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

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

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



Stercorarius longicaudus Vieillot 



Long-tailed Jaeger 



Plate 4 



Stercorarius longicaudus Vieillot. Nouveau Dictionnaire. 1819. 30: 157 

 Lestris buffoni (?) DeKay. Zool. N. Y. 1844. pt 2, p. 314, fig. 291 

 Stercorarius longicaudus A. O. U. Check List. Ed. 2. 1895. No. 38 



Ion' gicau' dus , Lat., longus, long, and cauda, 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, tibiae and feet black. The shafts of the first 2 or 3 

 primaries white, the others brownish, an abrupt change from white to brown 

 at the third primary. 



Length 17-23 inches; wing 11. 75-12. 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. Young smaller, the central tail feathers 

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

 recorded for the adult, wing 9.5-11.25. 



Distinctive marks. Adult birds of this species are easily recognized 

 by the excessive elongation of the central pair of tail feathers, the shorter 

 and weaker bill and lighter bulk of body. 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 relatively longer than in parasit- 

 icus, being longer than the middle toe and its claw, while the reverse 



