They do grow so fast, much faster than chicks. These are my first ducks ever, and they are adorable, especially when they follow me around the yard, and eat treats( their favorites are bananas and peas). I am very glad they're outside now. they were a nightmare in the house splashing GALLONS of water out and making such a mess. I couldn't make up my mind on which breed to get so I just got a few of everything Black Swedish, Blue Swedish, Cayuga, Rouen, and Khaki Campbell.