common cuckoo - cuculus canorus young in the nest- sylvia conspicillata - spectacled warbler

age animal aves avian background bad beak bill biology bird birding birdwatching branch bright canorus carefree common conspicillata creature cuckoo cuco cuculidae cuculiformes cuculus emerald europe fauna first gowk guide habitat hawk hawkcuckoo imitation maternity mother naturaleza nature nest nestling ornithology parasite perching person plaintive portrait predator resting simulation sing spectacled stick sylvia tour warbler watch watching wild wildlife young