RICHARDSON S SKUA. 



NA TA TORES. 



611 

 LARW/F.. 





RICHARDSON'S SKUA. 

 Lestris RicJiardsonii. 



Larus parasiticus, Arctic Gull, PENN. Brit. Zool. vol. ii. p. 179, adult. 

 crepidatus, Black-toed,, 178, young. 



parasiticus, Arctic MONTAGU, Ornith. Diet, adult. 

 crepidatus, Black-toed,, ,, ,, young. 



parasiticus, Arctic BEWICK, Brit. Birds, vol. ii. p. 250, adult. 

 crepidatus, Black-toed 252, young. 



Cataractes parasiticus, Arctic Skua, FLEM. Brit. An. p. 138. 



SELBY, Brit. Ornith. vol. ii. p. 520. 



iK Richardsonii, Richardson's JENYNS, Brit. Vert. p. 282. 



Lestris, GOULD, Birds of Europe, pt. iv. 



Stercoraire Richardson, TEMM. Man. d'Ornith. vol. iv. p. 4.99, 



