I have been sent an email by Junior asking if his male quail is likely to be fertile. Junior’s male quail is 2 years old. A way of telling if a male is fertile is if the eggs hatch, however Junior’s birds have yet to hatch some eggs.
I believe that the foam ball that the male deposits is a sign that the mating season or fertile stage has been reached.
I have read that a fully sexually mature male quail will have a noticeably swollen cloaca gland under the tail.
Hope this helps.
Sara @ farmingfriends