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These are Steve's nucs and a regular hive that was empty. With the nuc from me yesterday, he has 8. We opened all of them and saw queens in two - one of the nucs he moved into the empty hive.
He made the nuc boxes (his design) - two holes in each at the front with a screen over each hole. He just pulls one of the screens back for the bees to have an entrance.
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These nucs are at a farm not far from town and he has several regular hives on the farm in different locations.
It's always interesting to see how someone else does things.