Bee Tunnel Nests: End of Season

Most of the tenants in the bee tunnel nests have departed:

I assume the end caps with holes mark successful nests:

Some bees overwinter in the nests, so they should emerge from the tunnels with intact end caps:

Very few of the larger bamboo tubes met the acceptance criteria:

Other critters seem to have used the tubes for various purposes, though, so they didn’t go to waste.

I put these up in late April, with the June and July results showing much of the nesting happens shortly thereafter. Next year I should install the tubes in March; there’s no shortage of bamboo up the hill!