I need a little help with a duckling I got from Tractor Supply. I got word they had chicks in, and I just had to check their ducklings out. They were being sold as assorted straight run, and I wanted Pekins, so I wasn't going to bother since I didn't know enough about ducklings to confidently choose correctly. Well, in my looking, I noticed this one little duckling that was having trouble moving around. I struck a deal with the manager to buy two others and get that one for free to try and save it from a sad fate. Well, now I need some advice of what to do to help it grow correctly. Also, can any one tell me what the third ducking I bought is? I'm fairly certain I bought a 2nd White Crested, and it seems a bit lethargic at times, but will move around. I gave them all Probiotics and Electrolytes to try and help them get a good start, and they are all under a heat lamp in doors. They are actually set up right next to my chicks. Thank you for any and all help and comments. These are my very first ducklings, and I'm excited.