RE: Do turkeys gobble in the rain?
Something to think about is the fact that when its raining its harder to hear. I mean, I know that when rain drops are hitting all around you there is sort of a low "hum". That makes it harder for me to pick up on sounds. I would assume that would also be the case for turkey.
Example
I was hunting 3 weeks ago in the rain. When I got out there before sunlight it was nice but I could see lightning from the approaching storm. I had to make a mad dash of about 250 yards back to my pick up when it started pouring. I napped in the truck for about 30 minutes till it quit pouring. I headed back out cause I was sure I had the birds patterned. I was a little discouraged though becasue I was so confident I knew they would be coming my way but I hadn't heard a single gobble. Sure enough, after another hour I spoted 3 gobblers about 80 yards away. The funny thing was they wouldn't gobble to my calls. Finally after about 3 minutes one of them gobbled. They slowly worked their way to me and became more vocal the closer they got. It was sprinkling when I spotted them and started rainning harder as they approached. It appeared to me by their actions and responses that they really couldn't hear my calls that well at first. I attribute that to the noise from the rain.
Thats my two cents....
Oh yeah, I did bring a 21 pound gobbler with a 10inch beard home...