Rock ptarmigan (Lagopus muta) and a white-tailed ptarmigan (Lagopus leucura). Illustration from 'Birds of America',by John James Audubon (1835-1838) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 5078 px × 3441 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |