I'm not sure what started this quarrel between these two brown-headed cowbirds but the female looks particularly angelic so I can't see that it was her fault.
More info on these birds... if you get a chance listen to their sounds... it is a very unique bird call in my opinion.
A great shot! I love the fans of the open wings of the male and, yes, that angelic expression of the female (Nice subtle bokeh, too!) Fav (and what a cool bird call- kind of like a pebble dropping in a bucket of water followed by a one note whistle. Thanks for the link!)