Have no fear. The crows will win. The hawks have muscles and sharp beaks and savage talons. . .we had such a fight out here right behind where i live yesterday...it lasted for hours...I live on the eighth floor and the spruce trees are above my balcony so the tops where the birds like to perch are eye level for me. I don't know what took place but we have a hawk that lives in the area...she has been here for years now...I heard a terrible commotion about 11ish. Screaming and screaming, calling and calling...look out the window and there are about five crows having a complete meltdown...flying like maniacs and just raving. I couldn't see anything and then, my eyes found her, perched on a branch just outside my window...they kept swooping her and there she sat. Finally as they landed on nearby branches she began to hiss and scream and they were diving her. I've never heard a hawk before make noise...wow, it was cat like with the hiss and ended in a scream.
It was eerie and the screams blood curdling. It went on and on and on.
Finally one of the neighbours got out some fire crackers hoping it would move them and break up the fight. He set off three in a row and off they flew.
Five minutes later it began again.
I finally left....I couldn't stand it. It sounded quite literally like, a murder of crows.
I don't know if she took an egg or if they attacked one of her babies...don't know...it was terrible though.
Nature is that way
The crows have brains.
Game over.