Birds attacking windows—Most of us have seen a bird repeatedly hitting a window, especially in the spring.  In all probability, this bird is seeing his own reflection in the window and trying to defend his territory from an intruder. 

Do whatever you can to break up the reflection on the OUTSIDE of the window—put hawk or owl decals on the windows, hang strings of twisted foil strips in front of the windows, stick Post-it notes on the outside of the window; even let your windows remain a little dirty.  Visit your local bird store to obtain decals and find other ideas.

  Note: Hawk or owl decals work well.

Contributed by Beverly Guthrie

see complete article BIRDS, Those Backyard Jewels