The Forest

Hint: What should I do with the mailbox?

Hint: Is there anything of interest in the forest?

Hint: What's the deal with the songbird?

Hint: Should I do anything with this pile of leaves?

Hint: How do I open the jewel-encrusted egg?

Hint: I broke the canary. How do I fix it?

Hint: How do I open the grating?