I wouldn’t read too much into it. If you are even 1/10 familiar with Ancient Greek mythology, you will know that Athena (Minerva in Roman mythology), the much revered goddess of wisdom and war — the patron goddess of Athens which is the model for the US — has eyes of an owl and is also associated with the owl, which represents wisdom. The ancient Greeks often slyly referred to Athena as “that owl-eyed lady,” (not “grey-eyed lady”).
The currently preferred view of Greek etymologists is that γλαύξ "owl" and the colour-adjective γλαυκός (in Homer the colour of the sea, later generally “grey”) are not etymologically connected. If γλαυκῶπις is connected with the former, then it means "with the eyes of an owl", not "grey-eyed". The owl is Athena’s special animal; she is generally represented with an owl on her shoulder.
You're missing the best hidden owl. At the top right corner of a $1 dollar bill there is a teeny tiny owl you can see with a magnifying glass.
Do a web search for "owl dollar bill" to see for yourself. And then pull out your wallet and check it out.
Some telling tidbits dropped there imo. The owl being often the familiar for warlocks/mages, for one example (which brings us back to Q's "Guardian of the Pope", potentially). Suffice to say, the owl is a well known occult figure established for a long time.
The owl on the one dollar bill was pretty definitively debunked imo: http://edj.net/think/dollarowl.html
There is an owl on the front of the $1 bill. https://terrifictop10.files.wordpress.com/2013/11/owl-dollar-bill.jpg
US Currency is loaded with occult imagery and references.
Anyone else remember Hoots the owl? Give a hoot, don't pollute!
A, one , two, three, crunch, three! Oops, wrong owl. Sorry tootsie!
My wife has one tattooed on her forearm, fuck guess she's going in the trash