My thoughts as well, keep in mind there are very few pictures of BGxRES hybrids to compare with. The ones I caught at Prairie Queen all appeared to be male unlike the one Bruce posted a picture of. I would also point out that RES also have a faint spotting pattern on the flank, it's just blueish or blackish rather than orange. While I can't be certain of the parentage of these hybrids the long pectoral fins scream RES, it was one of the first things I noticed.
