flock of excited hoodies on a birch

ament animal animals behaviour birch bird birds birdwatching black bright catkins cattail city clamorous clever cluster corbie cornix corvus crow crowd crows dumb excited feather flock flowers forth gatherer gosling gray hooded hoodie hoody horde huddle intelligence madness march migratory ornithology out park predator raven smart spring springtime swarm synanthropic tiller tree waste wildlife