Hi quantum,
Here again, you've come up with a most imaginative improv. You created the sense of a mist, quite murky at times, and the piercing, raucous voices of the birds. (We have a large male raven that was born on our property and has been here now for three years with his lady friend. And when they sound the alarm, it's really raucous!) You created that effect well.
I loved the very low, sustained pedal points too. I listened with a headset, and when I closed my eyes during those pedal points, I could feel the concussion and low vibration from those very tall organ pipes! Reminded me of my youth. The city where I was born had a beautiful Paramount Theatre built in 1928 in Rococo style with 2,200 seats. It also had a Wurlitzer theater organ on stage with three keyboards. The pipes were mounted in chambers in the side walls behind the draperies of faux opera boxes. When I'd attend organ recitals there, and those lowest notes were played, it felt like the theater walls would tumble down! I got that same sensation in your improv here. Phenomenal!