Expanding the bee shed to a beneficials "biotope"

Stefan Sobkowiak posted some photos on his Facebook page of a "biotope" structure that provides homes for beneficial birds and insects. We are going to make two of them this spring, since we need bee sheds any way. What would you include to make the most awesome biotope ever?

(Thanks Stefan for permission to use the photo.)

I already have mountain bluebird boxes on my perimeter fencing, but I know I want mason bee shelters, maybe throw a hay bale underneath for bumblebees. Will woodpeckers nest near songbirds?

Ann Torrence wrote:What would you include to make the most awesome biotope ever?

I might stick on a couple of Rock Dove nesting sites under the eves. They'll leave presents.

And some drilled wood blocks for cavity nesting bees and wasps:

The labeled drill bit sizes are genius, Joseph!

Ann Torrence wrote:The labeled drill bit sizes are genius, Joseph!

It was part of an experiment to determine the preferred hole size for leaf-cutting bees. The bees in my barn preferred 3/16" holes. The smaller and larger holes attracted other species.

How about a water source for the bees, like a bucket with a safe landing place, and a source of mud.

My bee hut is 30" off the ground per Paul's instructions. I've place a few mushroom bolts under there and made what I hope is Morel inoculant. I guess I will find out in a month or two if it worked.

Bumping this 4 year old thread in hopes that the OP is still around and can report on the effectiveness of this project!?