As someone who lives next to a giant tree that is visited daily by many different bird species that I cherish a lot, this definitely felt very special to me. And sad, of course. But as much as everyone loves a happy ending, it's good that you showed the crude reality of that particular bird species. As horrifying as reality can be, it needs to be shown, and you managed to show it in a very appropiate way (not too cruel, not too crude, but still horrifying enough to create awareness)
You keep surprising me with how much you improve with each game, specially in terms of gameplay and art (this includes tilesets, sprites and CGs). The mechanics in this one were really interesting and they definitely make the game stand out (at times it felt like a twisted version of a virtual pet game).
The aesthetic and the art style of the game were also really amazing and quite fitting; it was cute, but at the same time it felt nostalgic and sad.
My main critique would be the music; I felt it was a bit too high/loud (I'm someone who has trouble with loud music/sounds all the time though, I know the struggle to find the right balance) and at times I felt it didn't really fit the game. It wasn't necessarily bad, I just felt I didn't fit the game. It doesn't ruin the experience though and it's just my oppinion (I guess it has to do with the vibe and feelings you expect from a game, and that obviously depends on each player, and I'm sure most players will love the music).
Overall, another solid entry by BroodyGaming with a new dose of really well presented/written sadness and really unique art style and gameplay and a really important message.
Great job!