Quote:
Originally Posted by kay
By coincidence, I've just come in from the garden having noticed that our bird box has been taken over by bumblebees - half a dozen of them buzzing around the entrance or coming in or going out.
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And, yes, they are tree bee, Bombus hypnorum, arrived in SE in 2001, spreading N and W. The ones around the entrance are thought to be males waiting to try their luck with emerging queens.