Hi, I just got two ducklings--one died shortly after arrival and the other one seemed to be doing really well until now. He was chasing the warming chicks around a lot and eating and drinking a fair amount and I took him out and he followed me around for awhile. When I put him back he seemed to crash--eyes closed, he keeps stretching his legs and rolling his neck around and basically nodding off, even appearing to sleep with his head hanging limp by his side. He does wake up quickly at any noise though, and continues to chirp away softly through the whole process. Is he badly dehydrated and therefore listless or could he just be sleepy from the journey and play? I just would hate for both ducklings to die on the day of arrival especially! Thank you very much!