Birds egg, common cuckoo, Cuculus canorus Ssp canorus Linnaeus, 1758, cuckoo egg found with 4 foster parent eggs in meadow pipits nest, Anthus pratensis (Linnaeus, 1758), at Cark, Lancashire, England, 1939

Birds egg, common cuckoo, Cuculus canorus Ssp canorus Linnaeus, 1758, cuckoo egg found with 4 foster parent eggs in meadow pipits nest, Anthus pratensis (Linnaeus, 1758), at Cark, Lancashire, England, 1939
Birds egg, common cuckoo, Cuculus canorus Ssp canorus Linnaeus, 1758, cuckoo egg found with 4 foster parent eggs in meadow pipits nest, Anthus pratensis (Linnaeus, 1758), at Cark, Lancashire, England, 1939