You might find these tips helpful
https://thepracticalplanter.com/how-to-keep-birds-away-from-fruit-trees/

You need to put a net over your tree

scarecrow? i know people put nets on their tress.

I love MOM165081’s suggestion. I heard some people saying that they hang old CD’s on the tree.

Hanging shiny sparkly things up helps somewhat. Combined with a fake owl (try Bunnings) it works even better.