The dark one showed up in my backyard with a green piece of tape on its foot. It was so small it fit in the palm of my hand just a ball of fuzz. It was lethargic I was worried and did not know what to do so I took it to the feed store thinking they wold know what to do with it maybe keep it No I left with 2 ducks and $60 in supplies. I was told they were a week old the dark one being the same size was the same. I think its a little older it is feathering first. We love them very much even though I was not so keen at first.They are about 4 to 5 weeks now and very different. My girl's named the dark one tumbles and the one with the fro is ducky mo mo. Anyone know what kind they are? Male's or female's? And do I need to worry about more baby's?