How low can it go before it falls?

First, a throw back to two years ago… changing water levels in the pond worked to carve out the earth under the roots. Alligator action might have played a role, too.

The smaller branches long gone, some kind of vegetation hid the base over this past summer.

At the beginning of October:

A couple of weeks later that cavity beneath the tree had collapsed.

I’m hoping the tree will stay around even after it collapses to serve as a perch for the wading and water birds.
Donnelley Wildlife Management Area, SC
That tree has certainly hosted some wonderful birds and excellent photo opportunities.
We have many old collapsed trees still part of the ecosystem at our local reserve.
Wow! A 3-year-long sequence!
You’ve outdone yourself, Mrs. Jennings.
Scott