My 7 ducks are in a coop next to my chicken house with a 10' x 10' enclosed run, and have been for some time. Renee, I hope to have pics uploaded soon as I still don't know their breeds, except the one Pekin. I know I didn't get the runners I hoped for. Hopefully next year. I wanted to be able to let them out of the run during the day but yes, am concerned about them flying into the trees or away. Next question is will they eat my flowers? The chickens scratched my flower beds half to death so they don't get out in the yard anymore. If the ducks are going to trample and/or eat my flowers I won't want them out either. And I'm picturing them flattening my melon beds in the veggie garden, so not sure what I can trust them with. I really wanted to be able to let them roam the days I'm home.