I have bought squirrel protection rings at Wild Birds Unlimited. It has
been a long time since I bought them so I'd call before driving there.
Good luck,
Cherrie
On Sun, Feb 8, 2026 at 12:47 PM Christopher Hill <carolinabirds...>
wrote:
> Hi all,
>
> I have a box that Great Crested Flycatchers nest in every spring and
> summer. In the winter some squirrel always makes it their personal project
> to enlarge the hole and turn it into a squirrel nest. I would like to
> install a metal guard with 1 5/8" hole (or whatever, I'd have to go back
> and check the proper diameter) to prevent a third re-occurrence when I
> reclaim the box for flycatchers this spring. Just a piece of sheet metal
> with a hole and no sharp edges or burrs (so I don't want to try freehanding
> with tin snips, for example). Googling doesnm't work for any combination
> of words I have come up with - infinite places wanting to sell you baffles
> for a pole, but no metal hole guards. Anybody have an idea or a source?
>
> CH
>
> Chris Hill, Ph.D.
> Professor
> Biology Department
> Coastal Carolina University
> Office: Douglas 207H
> (843) 349-2567
> email: <chill...>
>
>