One question and one more comment if I may. The question is, I sometimes will hear something akin to a bird call in certain places? Does this sound have any special meaning? Hmm, less of a bird call and more of a chirp. It doesn’t sound like bird song, but a high chirping sound.
There is some really nice wind as part of this game when you move through certain areas. It would be cool if jumping were to make use of this wind, instead of what is there now, which sounds like filtered noise. That certainly gets the job done, but the wind is quite realistic and would sound nice when jumping IMO.