Peak migration is over. Can I stop worrying about bird collisions? It’s a common belief that with migration winding down, bird-glass collisions also stop. In fact, collisions continue to happen. Even as the colder months settle in, the dangers posed by reflective and fly-through glass continue to threaten resident birds. To protect them, you must make your glass Feather Friendly as soon as possible. Here’s why collisions continue happening in winter, even if not as frequently as during migration: Winter Vegetation and Food Sources: Fruit-bearing trees near buildings draw birds like Cedar Waxwings, increasing chances of collisions with glass (Brown et al., 2019, PeerJ). Urban Lighting and Artificial Cues: Urban areas remain well-lit through winter, and artificial lights lure birds toward reflective glass that appears like a clear path. (Żmihorski et al., 2022, Science of the Total Environment). Clear, Frequently Cleaned Glass: Buildings with recently cleaned or untreated glass fu...