ol.XlI-] 

 .895 J 



CouES, Gl'itkes Heligoland. 



341 



MuiRANTS. 



Ml. Sterna cantiaca. Common- 

 est Tern, Apr. to end of summer 

 (no breeders). 



123. Sterna paradisaea {inacrum) . 

 Common, last half of Mav, again 

 in Aug. 



124. Sterna hirundo. Common 

 Apr. to end of summer (no 

 breeders). 



\i^. Gelochelidon nilotica. 

 Chiefly May to July, rare, over the 

 land, not fishing at sea. 



126. Hydrochelidon nigra. Rare 

 , or irregular, in migration, some- 

 times common in fall. 



127. Stercorarius pomatorinus. 

 Very rare in spring, young frequent 

 or numerous in Oct. Nov. 



1 28. Stercorarius parasiticus. 

 Commonest Jaeger in migrations, 

 less so now than formerly. 



129. Stercorarius longicaudus 

 {bufoHiBoie). Hardly more than 

 a straggler, but seen almost every 

 fall ; two adults taken in summer. 



130. Puffinusanglorum. Formerly 

 common; has totally disappeared 

 within 25 vears. 



131. Colymbus minor. Frec)uent; 

 periods not given. 



Str.ngglkrs. 



18S. Rhodostethia rosea. One 



specimen, Feb. 5, 1S5S. 



1S9. Gavia alba. One adult iden- 

 tified, Jan. 20, 1S50. 



190. Sterna dougalli. Two speci- 

 mens in 50 years, old simimer birds. 



191. Sterna minuta. None seen 

 for past 10 years. 



192. Sterna tschegrava {caspid 

 Pall.) Exceptional ; only one speci- 

 men ever taken, June 22, 1S80. 



193. Megalestris skua. Several 

 cases; onlv specimen Nov. 6, 1885. 



194. Puffinus major. Probably 

 two cases ; one specimen. 



195. Puffinus fuliginosus (given as 

 <'g-nseus Gm."). One specimen. 



Oct. 25, 1888. 



196. Cymochorea 



leucorhoa. 



Several cases ; 3 specimens in Dec. 

 1850, 4 in Nov. 1888. 



197. Uria lomvia. One speci- 

 men, many years ago. ^ 



198. Cepphus mandti? One 

 specimen, probably of this species. 



199. Colymbus cristatus. Casual 

 in winter; two cases in spring. 



200. Colymbus nigricoUis. One 

 specimen, date not given. 



