f86v3: A bird and a Mountain.

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I see that there is the thread You are not allowed to view links. Register or Login to view. on the voynich.ninja which discusses depiction of this page in the context of Winds, in particular, in the Ptolemaic system. I think that here, in the forum, must be a thread about the page f86v3 to collect all thought about its imagery in different conexts.  
This post includes observations on different myths containing scenes with birds and mountains, as well a part of my theory.
During the study I was often surprised with that fact that many myths from different corners of the globe repeat the same stories, sometimes modified, but in the same time, include almost identical details and characters. The issue of my interest is not an exception: most part of myths about the Water of Life or the Water of Immortality includes episodes with a mountain or two mountains and birds, often – an eagle, a dove, a phoenix and a raven. I couldn’t ignore such a detail because of the same motive of the page f86v3 which contain two mountains (or a mountain and a volcano) at the bottom and certain watery or bubbling shapes (not mountains) ejecting likely fumes or mist.
Birds always help to get the living water for gods and people:

• an eagle and doves brought Ambrosia to Zeus helping him to win his father Cronus;
  
• an eagle threw You are not allowed to view links. Register or Login to view. plant to some mountain from heaven or brought it from the mountain to earth;
  
• there are You are not allowed to view links. Register or Login to view. about birds (eagles or doves, etc.) which brought the living water flying between two clashing rocks, as no man can do it.
  

As for the image of a bird (eagle, pelican, or phoenix) on a mountain in alchemy, it has no one exact meaning, since there are too many different details in alchemy which play important role in identification. For example, the white eagle means the White stone or Elixir, phoenix means achievement of successful final of the Great Work – rebirth as the Philosopher’s Stone. In general, birds in alchemy mean volatility, volatile state of the material. According to one alchemical author, «the eagle flies up to the clouds and receives the rays of the sun in his eyes.» The text of the You are not allowed to view links. Register or Login to view.says that the first Hermes built the house at the mountain of the Moon opposite the Sun to observe the level of the Nile’s waters. They say, there was five Hermeses, obviously, this implies his five incarnations.
Alchemical works sometimes mention one mountain (of adepts), it can be a one- or twin-peaked mountain, but often two mountains (Sol and Luna) are mentioned.
The Voynich folio You are not allowed to view links. Register or Login to view. contains two «mountains» and two birds, possibly, eagles, one of them is sitting on the peak of the rock, another is descending from above. Descending bird almost always means the Holy Spirit. I have an impression that the left mountain here is humid or watery, ejectin moisture  in opposition to the right which is, rather, of earth and accepting humidity.