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NEW YORK STATE MUSEUM 



is the case in parasiticus; the unguis is longer than the cere or 

 saddle ; and there is an abrupt change at the third primary from white to 

 brownish shafts as in the adult. 



The Long-tailed, Arctic, or Buffon jaeger is apparently very rare in 

 this State. Mr Dutcher has no record of specimens in his Long Island 

 Notes. Mr Helme savs it occurs as a rare visitant, but mentions no speci- 

 mens. The same is true of the notes of the late L. S. Foster of New York 

 and David Bruce of Brockport. Mr Chapman states that it is sometimes 



Longicaurius 



Long-tailed jaeger. (N<)te the abrupt change at the third primary 

 in the color of the shafts.) 



Bills of jaegers^ nat. size 



Parasitic jaeger, (Note the gradual change in the whiteness of the 



primary shafts.) 



not uncommon off our coast. The only definite record for this State is 

 an immature bird in the plumage of the first fall taken on Long Island and 

 now in the Lawrence Collection [Am. Mus. Nat. Hist., no. 46094]. 



The jaegers of Giraud and DeKay are very difficult to make out. The 

 Lestris parasiticus of Giraud, a description of which he copies 

 from Fauna Boreali Americana, is evidently the Long-tailed jaeger which 

 is now known as 1 o n g i c a u d u s , but the specimen from South Oyster 

 Bay [Birds of L. I. p. 365], which he ascribes to this species is undoubtedly 

 the light phase of a Parasitic and not a Long-tailed jaeger, since he states 



