I had 4 silkies hatch yesterday. 3 were fully dry. While the 4th was hatching the others were pecking it in the face so I took the dry babies out and put them in a canvas tote under a heat lamp. They were all huddled together so I lowered the lamp. I put the kids to bed and came down to the first hatchling belly up in the tote. One other is now flapping its wings and shuffling its feet but not actually going anywhere, kind of in circles. Im terrified that got too warm and that killed one and caused braind damage in another. Is there any other possible explanation?