| Collection: | The National Geographic Society publications |
| Date: | 1979 |
| Publisher: | National Geographic Society, Washington D.C. |
| Scale: | 1:20000000 |
| Author/Editor/Maker: | Grosvenor, Gilbert M. |
| Height: | 88 cm |
| Width: | 54 cm |
| Parsons Code: | B1:6 |
| Notes: | Supplement to the National Geographic, August 1979, Page 154A, Vol.156, No.2 - Bird Migration. On reverse: Bird migration in the Americas. |
| Description: | Map / Chart / Plan |
