Thanks UA for the explanation. I thought your Dad didn't want the test. Must have read it wrong. Invasive is when you get cut
open, I guess inserting a needle for IV doesn't 'count'.
The wren nest
location was under the lid of a five foot high propane tank which is made of metal. The lid (cover) has two
open areas along the sides (for ventilation, I guess).
My plan is to cover those
openings with screening material, so they can't get in.
If the wrens want to nest in any of our trees...that's fine!
oops...forgot to mention that we won't know the results of John's CT scan until his appointment with doctor on the 26th