I think they're somebody's pets, because you don't see this in an inner city neighborhood everyday. They wandered in while trying to avoid the dogs on either side of us, and then found a hole in the back fence to continue on their journey.
I count 15 babies.
The only other place I've seen this type of duck was in Mexico. This last pic was taken in Puerto Vallerta. I googled them and discovered they're called Black Bellied Tree Ducks. They are only found in South Texas and Mexico.