marked

I am currently cultivating a feral bee hive, and I'm not entirely sure about their degree of Africanization, but I'd still really like to replace the queen with a mated Italian or maybe a Carniolan Queen. Being a feral hive, I have nothing marked and no way to do so, so that makes it especially...

Anyone know what to make of these? http://alexanderboyes.com/photos/20120924-Yellow_Backs.jpg Context: First year beekeeper just south of downtown Milwaukee, WI. Got a late start after two dud queens, but thanks to beesource member geebob I now have a healthy colony with a locally mated, first...