Drumming males can't beat Mother Nature. Cold Springs, wet periods at nesting or worse a sudden cold snap plays merry Hell with bird numbers. I've seen entire hatches of quail lost in just one bad day. Second nesting does occur but often with quail, it is smaller. Worse we often get a second nesting after a normal first nesting but we never got a third if the first was lost. So reports of early sign means nothing to me and need to be taken as more hype than fact.