Osmia bicolor 2

Went back to Rookery Pit today and was lucky enough to find an Osmia bicolor in the process of covering her snail shell with stems, having just sealed the cell(s) inside. Over an hour and ten minutes I repeatedly tried to photograph her in flight, broomstick-fashion, as she fetched more stems. Here's the best I could manage:

And the resulting "tepee" of stems, covering the shell:

Photos by Keith Balmer