We're thinking about adding some Indian Runner Ducks (possibly crested?) to our flock, mainly to live in the garden as pest and weed control. I have heard that they aren't destructive to garden plants and love garden bugs, grass & weeds. Is this a workable idea as long as they have a small swimming area and adequate shelter in the large garden? It's already chicken/turkey proofed. We don't keep ducks, just because of the water factor, but if I kept that in the low end of the garden, I think it would be OK. Any ideas or concerns you all would like to share?