159 



KICHABDSON'S SKUA. 



BICHARDSON'S ARCTIC GULL. 

 PLATE CCXXJX. FIG. II. 



Lestris Richardsonii, JENTNS. GOULD. 



Larus parasiticus, MOKTAGU. 



THESE birds build both separately and in companies twenty or thirty 

 pairs together. They make their nests on some raised part of a marshy 

 place, or the top of a moory waste; the heath, moss, or grass thereon 

 being imbedded into a nest. 



The eggs are two in number. They are laid early in June. 



