NATURAL HISTORY OF SOUTH AFRICA 



4. Soft-plumaged Petrel. 



(CEstrelata mollis^) 



Genus VI. — Ossifraga 



1. Giant Petrel. 



Nelly ; Leopard Bird ; Glutton Bird, 

 {^Ossifraga gigantea.) 



Genus VII. — Daption 

 1. Cape Pigeon. 



Daption capensis.) 



Genus VIII. — Prion 



1. Blue Petrel. 



{Prion ccBruleus.) 



2. Banks' Blue Petrel. 



{Prion banksi.) 



3. Broad-billed Blue Petrel. 



(Prion vittatus.) 



A. Narrow-billed Blue Petrel. 



Whale Bird. 



{Prion desolatus.) 



5. Fairy Blue Petrel. 



{Prion brevirostris) 



320 



