The yellowbill duck Anus [i.e. Anas] undulata Dubois in Southern Africa
By: by M. K. Rowan.
Series: African wildfowl enquiry,; report no. 2; The Ostrich. Supplement; no. 5.
Publisher: South African Ornithological Society
Published: 1963
Place of publication: [Cape Town
Language: eng
Number of pages: 56
Subjects: Anas undulata.; Birds -- South Africa.
Other titles: Yellowbill duck Anus undulata Dubois in Southern Africa; Yellowbill duck Anas undulata Dubois in Southern Africa