Just the spot where the monster first gets aggro, the circled area below

https://drive.google.com/file/d/1v5IpXLlsOzkvN2NAZhd4TRiuKk5vKGKb/view

Sometimes my menu doesn't want to open after I pick up the bone, I tried pulling the barrel first, and it works everytime, below is where you want to stand after pulling the barrel and turning around and throwing the bone on the red horizontal line

https://drive.google.com/file/d/1P9tsJL_Zqr1XjoKz_HNHRoa5YodKnNK7/view

This only saves a few tenths of a second, but you want to get the closest to the monster you can, so the bird you release can go the shortest distance

https://drive.google.com/file/d/1AdGh26eZP9rcGjwyHXxOc8lD1KWIIU1w/view

To get the monsters aggro the fastest turn around at the circled area below

https://drive.google.com/file/d/12_wArf9O5rJLog82pvjAqgKqxXvTN3Zb/view

To do the bird glitch you wait until the bird gets to the triangle shown below, and go onto the roof and down again within a few frames.

https://drive.google.com/file/d/1kjGUl23k1KX9EvfG6yz6XeOJzp4YTMD6/view