Back in Idaho this black bird kept bouncing off the window trying to get in was the strangest funny thing lol
Why Do Birds Attack Windows?
The root of this behavior is territorial. When birds select a nest site, the surrounding area becomes their territory, and they defend it vigorously. Bird territories vary in size depending on the bird species and available resources. A typical suburban songbird such as an American robin needs only a small backyard, whereas a pair of black-capped chickadees will chase off trespassers in a space from eight to 17 acres.
When a bird, searching for a nesting site, accidently sees its image in a reflective surface on its territory, it mistakes it for a rival and tries to drive the “interloper” away. This activity may continue throughout the breeding season, usually from May to early August, often with a pause as the birds move to a new location to start the next brood.