Hi everyone, I have some hatchery ducks (along with chicks) that arrived on Wednesday. Of the six (three Cayuga's and three Pekins) one of the Cayuga's is just not thriving - she's much smaller than the other Cayuga's, and even some of the chicks are her size now. She does eat, but seems a little more lethargic than the others. I'm fairly certain this is the same duckling I singled out as being "cold" when I picked them up, but she perked right up after getting in the brooder. It's Sunday, so Tractor Supply and my local feed store are both closed. Is there anything I can pick up at a typical pet store that might help this little one? Edited to add that I am feeding medicated chick starter feed (Amprolium, so it's safe), plus water changed twice a day, and the brooder is at a nice 94* directly under the light, around 86* at the furthest point from the light.