We drove to an area I new crows stayed at in the winter. Sure enough there were a bunch of crows flying back and forth between a park area and a row of trees. We parked in a gravel area where I positioned the car to photo the crows flying back and forth.
Crows summer and nest to the north and come south in the winter. I don't see crows around here in the summer. So I'm assuming they all leave. There are some crows that stay in an area all year around. If they stay in the Kansas City area I don't know of it.
Crows are moving more and more to urban areas. Could it be that they have learned that hunting is not allowed in the city? They will eat food waste that is around cities,.
They will roost in large groups. This could be for protection as an owl might attack at night. With a large group they will hear the alarm and scatter.
I have read they live up to at least 17 years. Though up to half of the new born crows don't make it long. One thing I always notice about crows they have a guard crow up in a tree watching for the crows that are foraging along the ground. If the guard crows sound the alarm the crows will all flay away.
Christians need to on guard as well. Many things will sneak up on us and hinder our walk and service for God.
1 Peter 5:8
"Be of sober spirit, be on the alert. Your adversary, the devil, prowls around like a roaring lion, seeking someone to devour."