Late 60's early 70's crow shooting was the best. I lived in the city but had an older friend who took me crow shooting at a pig farm in Carlisle MA. An old 45rpm battery phonograph player and horn and 75-100 decoys.
There would be 6-7 shooters including a reporter from the Boston Globe who was a regular of the shoot. Bag would be 100 plus crows and 40-50 pigeons spooked out of the feeder barns.
A different farm there would be shot each week till it went around again to the first one.
I would use up all the leftover shells from the last hunting season plus a case of target rounds on these hunts/shoots
The farmers were very happy with the results as it kept the birds out of the feed, and none of the birds shot went to waste as they fell in the pens for the hogs to clean up.
Today the lands are all subdivisions and a gun shot would get one arrested.