I was given 4 ducks. I know the brown one is a rouen. I don't know what the crested Drake is. He looks like possibly a slate blue swedish? The two white ones I'm confused on also. They do not have orange beak and legs like a Pekin. I have had Perkins in the past and they are definitely not Perkins. Their legs and beaks are a grayish black color. They are basically all a white or dirty white color but have a little black on the tip part of their wings. They are still pretty skittish as of now to get too close. Any guesses?