The Legend of Zelda: Skyward Sword HD has a simple leveling system that uses a variety of treasures, among which we look at how to get bird feathers. Unlike the other treasures in the game which you mostly get as random drops or just by finding them hidden in the overworld, these have a less obvious way of being obtained. The secret to getting your hands on these useful trinkets is actually in the shape of, you guessed it, birds.
How to get bird feathers
The first thing you will need for this is a bug net, you can buy one at Skyloft from Beedle for a small amount of rupees. After getting your hands on a bug net, first see if you can upgrade it as this will make the process much easier. If you're still early in the game, that might not be an option, but you can still get away with normal, so don't worry. Next, you'll want to descend into the Faron Woods through the Green Pillar and land just about anywhere. However, the back of the Sealed Temple area is a good place to start.
Once you've landed in the woods, the next step is actually quite simple. Look around for a few small birds on the ground, get out your bug net and try to catch some. Don't rush when you do this, approach them slowly and lock them when you approach them. Then, do a quick, decisive hit with the net to try and pick up some birds. This will catch you one bird feather per bird. If you missed it, move away from the area until the birds return and try again. If you spot a Bluebird, you have the option of getting a Rare Bluebird Feather. These are used in some one-time upgrades and also fetch a pretty penny.
The Legend of Zelda: Skyward Sword HD is available now on Nintendo Switch