Robert S. Ridgely
6 published titles
A guide to the birds of Panama
1 edition
- ISBN: 0691081743
- Princeton University Press
- 1976
- Details
The birds of South America
2 editions
- ISBN: 0198572174
- Oxford University Press
- 1989
- Details
- ISBN: 0198572182
- Oxford University Press
- 1994
- Details
A guide to the birds of Panama : with Costa Rica, Nicaragua and Honduras
1 edition
- Princeton University Press
- 1989
- Details
The birds of Ecuador
2 editions
- ISBN: 0713661178
- Christopher Helm
- 2001
- Details
- ISBN: 071366116X
- Christopher Helm.
- 2001
- Details
Birds of South America : passerines
1 edition
- ISBN: 9781408113424
- Christopher Helm
- 2009
- Details
Birds of Brazil
(Contributor)
1 edition
- ISBN: 9780801476464
- London
- 2010
- Details
