Description
provided by World Register of Marine Species
Size: medium. Plumage: black and white. Other characters: heavy, black laterally compressed bill.
Urban, E. K.; Fry, C. H.; Keith, S. (1986). The Birds of Africa, Volume II. Academic Press, London.
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
- contributor
- Lorna Depew [email]
