Even the sounds of nature (wind, trees, water) feel like articulate non-human communication to me.
Thank you for posting this.
I am just getting into allowing nature to speak to me, but I am still unused to this language and mode of communication. Being in nature is one thing, but what I do with the trees is to speak to them and hold out my hand and touch them. Just being with the tree and letting the tree be with me - though the contact of hand to bark.