[RegulatorCountry]

Territorial males fighting their reflection.

Cardinals do it too, among other birds.

[goat granny]

Thanks, I thought they just were trying to scare me into moving...:O). Never though of reflections. Since I have cardinals year around they aren’t a problem except they are agressive at the bird feeders. Dumb Red wings must forget from year to year. I have never seen a Red Wing at the feeders, I wonder what they eat...