It was fun the music is good but maybe a little loud at the start it seems to quieten later in the track and I could here my footsteps, I think it just needs a balance. I would have loved to here some sporadic bird noises hen you lay eyes on the birds as you gather them I can almost hear it in my head and it saddens me when they don't come. In the duck area the text on the puzzle went a little funny - I knew what to do from before so NP but a bug you may need to know about. The Pigeon art with the red was maybe a little strong felt like evil magic symbols and didnt seem to match the general vibe (unless this was your intent). The ending it may be nicer to use a fixed camera when you reach the the egg with a slow small pan upwards and the birds taking flight.
Just some thoughts did enjoy it and I think you have made a nice experience.