okay, we had been keeping our chickens caged, but since its been so hot recently, we've let them free range. & since then, two hens have took to sitting on their eggs. one hen started sitting on the first and stopped last night. she did really well until last night. so, i decided id incubate the eggs. since we have never raised chickens, we dont have an incubator. but, i put the eight eggs in a steel bowl with a light. not the best, i know. but, i dont know if the embryos are alive or not. we tried candling them, but i dont know what im looking for. id really like to save the chicks, but i dont know how. help?