Konrad Wothe / Whooper Swan (Cygnus cygnus) pair arguing at wintering site, Kussharo-ko, Hokkaido, Japan

Konrad Wothe / Red-crowned Crane (Grus japonensis) couple in courtship display, Hokkaido, Japan

Konrad Wothe / Japanese Macaque (Macaca fuscata) young playing, Japanese Alps, Japan

Konrad Wothe / Red-crowned Crane (Grus japonensis) calling during courtship, Hokkaido, Japan

Mitsuaki Iwago / Domestic Cat (Felis catus) kitten calling, Japan