This is my first set of Cornish Crosses, everything went great with 0 losses until day 10 then I have been steadily losing 1-2 birds a day. Out of 63 I am down to 55. I knew to expect some mortality but I am concerned something isn't right. Some where runts, some were leg problems but all in all they look great, eat, drink etc. and then I come out to find dead chicks. Here is my situation: Brooder 8X4 Salatin/hut brooder with a 2X2 hover. Started with two light bulbs, down to 1 bulb at day 14. Bedding is wood shavings from my hardwood wood shop. I have an 8 nipple PVC pipe along one side that adjusts up. I started with red plastic trough feeders, upgraded to two 10# tube feeders. After having some mortality I put the trough's back in along side the tube feeders. Feeding medicated chick starter. I am at day 16 now. Is this 'normal' Is the brooder too small or too low? One long side has chicken wire on so I keep that lifted during the day, the gable ends also have chicken wire and are open daily as long as its not raining. I close everything up at night. Looking to put them in a Salatin style tractor in a day or two when the cool rainy weather lifts. Worried about the stress of this, but also thinking it might help them get up and moving around. **The waterer and feeder has been raised as they age.