I have a free range hen (American game) that I have been watching closely as part of an experiment. The last four eggs have been produced at or less than 24 hour intervals. I was present for direct observation of egg being laid or could connfirm occurence prior to a certain time. Most papers I have read indicate more than 24 hours required between eggs but one paper I can not find indicates under proper conditions, a 23 hour interval possible. My conditions are not special. Anyone also watch closely enough to determine actual interval between eggs produced?