[goat granny]

Those Red winged Blackbirds are stupid...every year when they return to Michigan in the spring, quite a few build their nests in the cattail swamp behind my property.

For about the first 3 weeks when they return, I get them flying into my back bay window. They just BANG into it..Its surprising none have broken their necks yet..sometimes after they hit the window, I find them sitting on my deck squawking.

It seems that they quit about the time the female starts sitting eggs. But they have done this for the last 10 years I have lived in this house.

[RegulatorCountry]

Territorial males fighting their reflection.

Cardinals do it too, among other birds.