I've out together the bits I could find about the "Y" head that was asked to be identified. It can be a bull, a goat or an owl.
The bull I believe can be discounted as belonging to a different myth.
The goat has obvious Lucifarian/ Lillith/ Baphomet connotations. In modern Luciferianism, Lilith, who is represented as an owl, is considered a consort and/or an aspect of Lucifer and is identified with the figure of Babylon. She is said to come from the mud and dust, and is known as the Queen of the Sucubi. When she and Lucifer mate, they form an androgynous being called "Baphomet" or the "Goat of Mendes," also known in Luciferianism as the "God of Witches."
The owl has many connections. The Greek goddess of wisdom, Athena, also the equivalent Roman goddess Minerva the owl, or rather the owl itself, was regarded as sacred.
In the Bavarian Minerva Illuminati order, the owl was a sign of rationality and intellectualism, placing the owl of the Minerva on an opened book and using it as a symbol for their community.
It has connections to the Bohemian Club/grove. There is only one "great owl" of Babylon and "goodly" Tyre. If you read your Bible, or any historical document of the time, they were burning children in the Babylonian and Canaanite kingdoms before the owl-god Moloch in the "Immolation of Care" ceremony.
The owl can see extremely well, especially at night. It is for this reason that the owl was chosen and is used to represent Satan in Luciferian worship, because the owl can see what most other creatures cannot see. The owl can peer keenly through the darkness and even see a tiny mouse moving. This represents the evil occult knowledge possessed by Lucifer-worshipping, Christ-rejecters who hate God and love sin.
This would also tie in to the Owl clue in Q's posts.
I'm going to bed now.