Dutchlady1 said:Oh I like that idea. Must investigate....
(about the holes in the sides, that is - we crossed posts)
What my friend did wasn't with an actual stump... he took sections of trunk from a tree that had been cut down and drilled out/hollowed out the center, and/or drilled holes in the sides. So his were portable.
He said he tested lots of different woods -- not surprisingly, pine worked well, and oak was more difficult.
Me? My stumps are too skinny (maybe 4-6" diameter) -- I had two conifers that died in the last couple years. I left the stump at about 4' high. Put a birdhouse on one as garden art, and am waiting to see what I'm inspired to do with the 2nd one. They're maybe 10' apart from each other.
