A Chick of Common Cuckoo (Cuculus canorus) in nest of Marsh Warbler (Acrocephalus palustris). Ryazan region (Ryazanskaya oblast), the Pronsky District, Denisovo.

A Chick of Common Cuckoo (Cuculus canorus) in nest of Marsh Warbler (Acrocephalus palustris). Ryazan region (Ryazanskaya oblast), the Pronsky District, Denisovo. - 107948097