|
Description: |
24 pages : illustrations (some color), color map ; 28 cm. |
|
General Note: |
"Order Anseriformes; Family Anatidae." |
|
|
"Anas clypeata ; French: Canard souchet; Spanish: Pato cucharón norteño." |
|
Bibliography Note: |
Includes bibliographical references (pages 18-21). |