Blackbirds congregating in Autumn trees.

Size: 4590px × 3048px
Location: Barrington Hills, Illinois, USA.
Photo credit: © Chuck Eckert / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: autumn, birds, blackbirds, collapse, expand, flock, grackles, graphic, group, large, nuisance, pattern, pests, societal, swarm, synchronization, synchronized, trees, wildlife, winter