English:  Common Cuckoo, Grey Cuckoo, European Cuckoo, Eurasian Cuckoo
Russian: Обыкновенная кукушка
Mongolian: Эгэл хөхөө
German: Kuckuck
French: Coucou gris
Japanese:  カッコウ (Kakko)

Body length: 32-36 cm
Wing span:  54-60 cm

Breeding visitor
Breeding season: May-August

Egg number: 1-6
Egg colour: Moderately glossy, very variable
Brood: 1 per year

Global status: Least Concern
Regional status: Least Concern

Food: Various insects and their larvae, also fuzzy caterpillars.

Habitat: Its breeding distribution depends on the distribution of host birds. Inhabits coniferous, deciduous and mixed forests in mountain forest, forest steppe, mountain slopes, and valleys of lakes and rivers during the breeding season. Breeding birds do not build their own nest. They lay their eggs in other birds nests (nest parasitism).