Awww, that sounds cute. My yard is picket fenced, and the duck pen and chicken pens are separate within the picket fence line. My dogs also have collars, which used to run around the picket fence (pre-duck/chickens) but we ran the dog fence along the pens now. When I am home, I let the chickens out in the whole picket fence area. The dogs will sometimes trot after them, but won't really bite at them. One of my dogs has occasionally gotten a bite of tail feathers, but I think he just likes to watch them try to fly away! He doesn't continue to chase them. The other one will lay around and let the chicks peck him, and he won't even move! The younger chicks go through the pickets to get away from the older chickens, too. I haven't tried letting the ducks out yet, because I'm not sure what the dogs would do. Probably the same that they do with the chicks. I do know that ducks will lay wherever they want to, no matter where you try to get them to lay.
There are lots of threads about mixing chicks and ducks, and I'm sure some folks do it successfully, but its not highly recommended. There are some things to watch out for, so do your homework. For example, ducks must have water deep enough to immerse their entire bill, they have to keep their nares cleaned out. Chicks can use water-nipples and such, but ducks can't. And ducks get the water filthy in no time!
There are lots of threads about mixing chicks and ducks, and I'm sure some folks do it successfully, but its not highly recommended. There are some things to watch out for, so do your homework. For example, ducks must have water deep enough to immerse their entire bill, they have to keep their nares cleaned out. Chicks can use water-nipples and such, but ducks can't. And ducks get the water filthy in no time!