Local feral survivors in eight frame medium boxes.
I've been keeping bees for 45 years, have read hundreds of beekeeping books, thousands of beekeeping threads on forums and have never heard of either a "queen gate" or a "travel gate" until just this minute. Do you have a reference or a link to the terminology? Is this perhaps an entrance guard? Like a piece of equipment that goes over the entrance that has a queen excluder on it? Like a "queen includer?"