How elaborate you make your bird house depends on your own tastes. In
addition to where you place the box, the most important considerations
are: box height, depth, floor dimensions, diameter of entrance hole
and height of the hole above the box floor.
Refer to the following chart before building your nest box, keeping in
mind that birds make their own choices, without regard for charts. So
don’t be surprised if you find tenants you never expected in a house
you intended for someone else.
[Illustration: Squirrel on feeder]