We just finished a real nice big pen earlier today that were using as a grow out pen for some pullets for a few weeks until they get a little bigger to go with the rest of the flock. The pen is 20x20 feet and 6 feet tall,with a 4x4 foot coop that's 7 feet tall. I have never raised turkeys before but would love to. How many could I keep in the coop 2-3?