I would like to say it is wisdom from my American Indian grandmother, but that would be false. It was a simple deduction from my observation over the years. The crows and ravens never appear after a wind quits, unless it is stopping for at least an hour. The baby crows come first, then the older ones when a light breeze starts, and then the ravens as the wind picks up, but they fly off before it gets too strong.
The breeze picked up and the big crows ascended, but flew when the rain started. No ravens today. My walk was very pleasant, with only a couple of mama Red Winged Black birds making threats against me, so I walked further from the trees and closer to the irrigation ditch.
The Murder She Broke (More correctly broke her)
I once warred with the crows until I found out they had a 5-year memory and passed along grudges to their offspring. I once sprayed them with high pressure water and called them derogatory names. It took 7 years but after a lot of sweet talks and allowing the crows to hang in my yard by the dozens, they no longer caw at me or clog my water fountain by bringing in a lot of discarded food they get from behind restaurants, a mile away. Also, no more purple poop on my back patio during mulberry season. As a bonus gift, for my exemplarily behavior and sweet honey dripping personality, they drove off the noisy magpies and jays.
Just like a President Trump negotiation, the war stopped, and it was a win for both parties involved.