[H2only]

I was out at the pond tonight and heard a strange bird. First off the pond is surrounded by heavy woods with farm fields around the woods. The nearest farm is maybe 3/4 mile away, and the pond is a good 1/4 from a low maintenence road.
The sound was coming from 3 completely different areas of the woods maybe 20 yards from the water, but it was like a raspy rooster cluck but longer, they would "cluck" 3 or 4 times and then flap their wings, like beating their chest or something, the flapping was a low very strong sound.
Were these turkeys possibly? I stood and watched each time but could not see anything moving.