so ive have chickens,cows,lambs,goats,dogs,cat,and ive even had a mini horse but never ducks. and that changed after my trip to tsc on monday. i bought 3 sweeds and i need some info. i have them in the barn with a heat lamp. food and water. and i just found out all ducks cant fly so "CAN MINE"? also how much run room would 3 ducks need when there bigger.also how big of a breed are they? thanks for all the help.