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They aren't scared of the cats - they are complete thugs that have evicted the local hawk, circle you if you walk on the hill and rob the bird nests in the mulberry tree next to the houses. The little birds here have a hard time: Crows during the day, owls at night and then the cats at any time

Thugs!!! I could see that. I have some friends who are in denial about crows acting like the wild beasts that they are.

Your description of the crows reminds me of another species that is famous for evicting all the other wildlife from the areas in which it resides... when humans go under the crows will take over.