Flying Creatures

Add more flying creatures that drop valuable items. These flying creatures are harder to kill because they are higher up and/or have higher hp. I feel as if adding more flying mobs (birds, pterodactyls and more) could have an impact on throwable item usage. Assuming there would be an increase in bow and arrow usage, and if there was a snow biome flying mob, that could result in more snowball usage, making these items more valuable. Said mobs would then drop valuable pieces, opening up new routes to crafting certain items, expanding a new area of the game overall.