We had our first rain in 220 days here today. My chickens had never experienced rain before. They didn't quite know what to do! It was funny to watch. When would pour down and they would run for the covered section of their run. Then, when it would lighten up, they would all come out and free range again. Another downpour and they would run, run, run! Very entertaining these animals. One of my Easter Eggers stayed in the coop most of the day, she didn't like the wet at all! What did your chickens do the first time they experienced rain?