Close-up of the head of a Greylag Goose (Anser anser) showing aggression by hissing with it's beak open. Note the many toothlike projections on the beak as well as the tongue. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source / Bob Kennett |
Taille de l’image : | 7360 px × 4912 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |