One year we had an extremely long snowy cold spell never had seen crows down around our house just flying over head. One day I could hear them close looked out the front door there was quite a few sitting on a limb of a tree looking right at me almost like they were asking for something to eat so I tossed corn out for them . Since then I have never seen them down close to the house just flying over head chasing a hawk or two . I really like having them around.