From Melvin Laureano Nature & Wildlife
A Great Gray Owl delicately testing the strength of a pine tree’s tip before settling-these large owls often perch high to scan and listen for prey below.
Mountainview County, AB
The world’s largest owl by overall length, the Great Grey is mostly air.


This has been studied and proven incorrect
https://pmc.ncbi.nlm.nih.gov/articles/PMC2880151/
Next day edit - Akshually this was just meant to be an interesting reply, hopefully it was well received. I was tired and busy yesterday, sorry if this came across as blunt/rude.
Nice! I will have to read this today. Thank you for sharing.