Greylag Goose (Anser anser), parent birds attacking and defending their gosling from aggressive Mute Swan (Cygnus olor), Germany

- Image ID: BTXF1J
Greylag Goose (Anser anser), parent birds attacking and defending their gosling from aggressive Mute Swan (Cygnus olor), Germany
Duncan Usher / Alamy Stock Photo
Image ID: BTXF1J