Want your old birds to go UNUNUN? Well this mod may be for you. Adds regi sounds from the anime with some audio filters to fit in with the old birds. Trimmed the audio from these videos:
https://www.youtube.com/watch?v=1im9i0ZTShk https://www.youtube.com/watch?v=nud5ZJflOyM https://www.youtube.com/watch?v=pSMQYDYBALY
Preview of the mod (ingame): https://www.youtube.com/watch?v=T4ytMT-SfWw
There's currently a whine sound the old birds make (it's captured in the video too) which I do not know the file name of so I can't replace it unfortunately. Will probably update it if I ever figure that out.