#7 If there are problems with food, then one flock of crows can attack another, beating off the territory.
#8 As observation has shown, it is enough to kill one individual for the crow to decide to fly over.
Birds remember the place where the danger was for a long time.
#9 In addition, the birds have inhibitory control, that is, they are able to keep the impulses of instinct under control.
They are characterized by rational behavior.