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Further comments on hybridisation between the European Wigeon and Northern Shoveler

by Harrison, J M
Published 1964

Some hybrid ducks in the collection of the Zoölogisch Museum, Universiteit van Amsterdam

by Wattel, J., Harrison, J.M.
Published 1968

Some hybrid ducks in the collection of the Zo\xc3\xb6logisch Museum, Universiteit van Amsterdam

by Wattel, J., Harrison, J.M.
Published 1968

FURTHER NOTES ON THE NORTH-EASTERN GREENLAND RACE OF THE DUNLIN FROM EIRE AND KENT

by Harrison, J M, Harrison, J G
Published 1971

Comments on a hybrid Red Shoveller x Northern Shoveller

by Harrison, J M, Harrison, J G
Published 1963

A cinnamon teal x northern Shoveler hybrid

by Harrison, J M, Harrison, J G
Published 1965

A BACK CROSS HYBRID INVOLVING CINNAMON TEAL AND NORTHERN SHOVELER AND REMARKS ON HYBRID CHARACTERS IN THE GROUP OF BLUE-WINGED DUCK

by Harrison, J M, Harrison, J G
Published 1971

Maurice Hall Haycock (1900-1988)

by Harrison, J.M., Hobson, G.D.
Published in ARCTIC (1989)

Maurice Hall Haycock (1900-1988)

by Harrison, J.M., Hobson, G.D.
Published in ARCTIC (1989)

The white collar of the Russian brent goose

by Harrison, J M, Harrison, J G
Published 1965

A goose hybrid with the head pattern of the Giant Canada goose

by Harrison, J M, Harrison, J G
Published 1969