1941
Zoologist
Bibliografía (61 obras)
Audubon North American birdfeeder guide
2010
Garden bird behaviour
2006
Aig an Oir =
2005
Audubon birdfeeder handbook
The world of the hummingbird
2001
Sport psychiatry
2000
New birdfeeder handbook
Audubon backyard birdwatcher
1999
Birdfeeder garden
1998
National Audubon Society North American birdfeeder handbook
1992
Bird migration
Nature's last strongholds
1991
Animal homes
Les Derniers refuges de la nature
Animal life
The Royal Society for the Protection of Birds birdfeeder handbook
1990
Birdflight
Marshall Cavendish international wildlife encyclopedia
Discovering owls
1989
Hamlyn junior encyclopedia
The mouse in the barn
1988
Eggs
1987
La Vie qui nous entoure
1986
Beginnings of life
New junior encyclopedia
1985
Bird behavior
Encyclopedia of the Animal Kingdom
Vogelgedrag
Le monde où nous vivons
Purnell's pocket concise encyclopedia ofnature
1983
Wildlife in danger
Wonders of the sea
Ceffylau a merlod
1982
Nature's night life
The family library of wild animals
Field guide to British birds
Field guide to British birds, garden & countryside
The New Funk & Wagnalls illustrated wildlife encyclopedia
1980
The New international wildlife encyclopedia
Seals
1979
Carnivores of Europe
Venomous animals
1977
The seashore and its wildlife
Nature by the roadside
Ponds
The mating game
1976
The language of smell
The living sea
The cat family
The love of baby animals
The Wondrous world of birds
How birds live
1975
The Funk & Wagnalls wildlife encyclopedia
1974
Funk & Wagnalls wildlife encyclopedia
The life and death of whales
1973
Animal senses
1970
Animals of the Antarctic
