One of the Rio Grande Wild poults is acting kind of sickly today. The other poults all look very lively and active, but this one seems kind of tired and slow, keeps standing and closing his eyes and kind of weaving a little - like a drunk trying to sleep standing up. I picked him up and couldnt' see anything obviously wrong, but it did seem like his crop was empty. Didn't see him drinking so I dipped his beak in the water - no change. He sticks his head in the food tray but doesn't seem to eat anything. Hatch date was 5/18, they are on Game Bird feed, been in this brooder pen for 2 weeks. I have them on straw and just added more today. Pen is in garage, warm and dry with heat lamp on. If he's still looking poorly in the morning I will probably isolate him from the rest, try some sugar water and see if we can get more information for a diagnosis. Thoughts?