I have a male/female pair of cardinals attacking the bow window in our living room as I type this, and they have been at it for two days, off and on, and this isn't the first time. I live at the edge of a wooded area, with pasture land on the other three sides, and this area has plenty of critters to get into things. Birds attacking windows are very common and sometimes they can be easily frightened away, and sometimes not. The cardinals are the second "attackers" so far this spring. A couple of weeks ago, it was a male robin bouncing himself off one of the basement windows. Sometimes they can be scared away by simply throwing back the curtains and shouting and waving at them. I've tried using rubber snakes and some of my granddaughters more realistic looking stuffed cats, with some success on the more determined birds. Some go away when they see them, others would just stay farther away and watch for a while, and then ignore the snake or cat and continue as before. As long as they aren't hitting the windows hard enough to do any damage, I usually leave them alone until they eventually give up and go away. I've had a couple that nothing would scare away for more than a few minutes. One in particular was a Robin with a death wish that kept bouncing off the window so violently, he would sometimes stun himself enough to hit the ground until he recovered and resumed the attack. He was one of two violent enough to break a window, and was finally stopped by a wing shot from my trusty Remington 870 12 ga. The other was a very large Blue Jay that got a dose of 7&1/2 as quickly as I could make it out the door with the 870. He was really clobbering the glass and I thought we were going to lose the window before I could get to him. Some are easy to stop and some just will not stop. I suppose, like people, some birds are crazier than others.
