I went through a spate of nine days, each day, i found a hen(or cockerel) shut inside one of my feed bins, the 5 males were dealt with and the ladies enjoyed a few days of luxury, and were health treated, and then eventually re homed, thank fully I'm out in the country so extra males shouting wasn't a problem,
a bit worrying that people were willing to travel 1mile off a main road to break in, and dump hens.
hope you find a home soon