What do you use for a breeding pen?

[_Wildwood_]

What do you guys use for a breeding pen? And about how big should they be for two or three birds? I'm planning to raise Cayuga Ducks and Lf. Chickens.

 

[Egghead_Jr]

I use my grow out pen as a breeding pen when needed. It's a simple 4X8 tractor with a kids plastic playhouse for the coop. Has better wheels on it now but as you see it doesn't have to be anything special.

More serious breeders with several single matings going on at once and multiple breeds have long structure and pen divided up into many small coops and runs. Providing 4X8 or bit more to each run.