Ok so im new to ducks...Mine are about 3 weeks old very stinky & have to get out of my bathtub/brooder lol. I have 2 mallards, 1 khaki & 1 pekin...I would like to let them roam free during the day but put them in at night like the chickens, do yo all think thats a good idea? also any suggestions on a very inexpensive easy to make coops. my husband got lazy after he built the chicken coop lol.. thanks yall!!!! also...do you think my variety of duck breeds will be ok living together once full grown?