SCOT. NAT. ANT. EXP. 



Ornithology of the " Scotia." Plate IV. 



VOL. IV. 



[Pkvtv by J. H. H. Pine. 

 1. Tracks of Black-throated Penguin (Pygoscelis adtlia). 



by R. X. R 



2. Black-throated Penguin building its nest. 



3. Gentoo Penguin (Pygoscelis papua) sitting tight on its eggs 

 after a blizzard. 



4. Ringed Penguias (Pyqoscelis aiUarctica) at their rookery 

 (on 'Saddle Island). 



