The aesthetic is really good. I like the eerie, dark atmosphere; it reminds me of stuff like inside, or an old game which I can't recall the name of now (I think from the flash era). The puzzle wasn't that hard, but it still was fun to play through. Something I really liked is how clicking on something which you can't solve at the moment gives you hint, as in clicking the beast will say "looks hungry", so it was pretty clear what to do when I got the dead bird.
Might be a browser problem but the audio when you bait the beast got a little jammed.
I think the only thing I would change is to give some indication that you can dig that specific spot for the bait. It wasn't hard to find at all cause it's pretty clear what you have to do, but I think it would look great.
Really good game!