food for thought andreas.
i,m using ANDY BEZENER,s birds of ontario field guide.the male,female in question was shot earlier this year,with an adult male present,and were observed dipping down into the reeds,where i presume the nest was .i,m very unsure but will go with the aumption that it is a male according to your expertise.i,m just a rookie,and by no means capable of beeing able to identify this bird for certain.