Gusman done gone did a bad, sad thing

I spotted this Hairy Mary Caterpillar walking up a 25 meter high metal Floodlight pole.
Thinking I am doing the right thing I move it to a tree.
I went back to where I was sitting at the cricket then thought I would like to take a photograph of this beautiful Caterpillar on the tree.
When I got back to the tree the Caterpillar was gone.
It was not more than 2 minutes, from tree, get camera and back to the tree.
Caterpillar was gone.
Nowhere to be seen. Not on the tree, not behind a leaf, not on the ground.
I deduced that a magpie must have had it for a snack. There were 5 Magpies all around.
Gusman did a bad, sad thing and cost a Hairy Mary Caterpillar the chance to metamorphose into a Anthela varia moth.