Owls love being sung to. Their little satellite dish head will turn right toward you, transfixed, as you sing soft and slow. You'll see their eyes visibly relax. It's a beautiful moment if you can have it.
That is so awesome! owl-whisperer -- kindred spirit to them. It does not surprise me that they would appreciate your singing if they get you, and see you as a sort of friend...singing is the language of birds, after all (to me it the language of all creatures that communicate with sound, just with various formats and meanings and additions....)
I have never gotten close enough to an owl and may never get close enough to try to sing to one...I am stuck in big cities; There are owls in the city but they are hard to spot, very wary of people usually, including me it would seem. But if I ever get the chance I will remember what you said and see how they react if I sing soft and low to them; I have been close enough to an eagle and another time a falcon in the city that I could have sung to them.
Ravens also seem very unphased by me...I have gotten very close to them -- been startled to look up and see them just feet away, staring curiously at me. Their little crow cousins, it is more hit and miss...
Once when I lived in Toronto, I was crouching against a low concrete wall, writing something for work, and a tiny little bird (not sure of the species) hopped out from a nearby bush and looked curiously up at me, chirruping in a friendly, inquisitive way, and them hopped right underneath me into the space between me and the ground. It just hung out with me for a bit, chirruped at me a little more, and went on its way. Its friendly, inquisitive nature and display of trust is something I carry with me and cherish. [btw I said "hello" and tried to chirrup back at it - it knew I was awake and aware of its presence, that's why I felt trusted - they don't normally get that close, although for all I know that one had befriended other humans already that perhaps fed it, and maybe that is why it was cool with me]
Owls are mysterious strangers I merely admire from afar. I am so happy for you that you have been able to sing to them.
And I like the name for your weaving!