Osmia leaiana using Cotoneaster leaves for nest site video 17/9/16

Osmia leaiana using Cotoneaster leaves for nest site video 17/9/16

Osmia leaiana making very late nest site The warm September weather certainly helped my little Osmia leaiana with her nest site inside one of my solitary bee observation nest boxes.  I was wondering where she was collecting her nesting material from and eventually I...