I have 4 colonies in rather shady location (about 1 hour of morning sun, remainder moderate to deep shade). I have noticed an odor which was somewhat familiar to me, but hard to describe; then I remembered what it smelled like - when I was a kid we played ball in the street, in the city. When the ball rolled down the storm drain at the curb, which was pretty often, we would pull off the manhole cover, and someone would go down to retrieve the ball. The smell of the bee hives is similar to the smell in that storm drain. Not real strong, but of rotting vegetation & stuff that ends up in that drain.
Any thoughts on what this might be would be welcome.
Thanks in advance.