How do you get a bird feather on Zelda skyward sword?

you catch the tiny birds in faron woods with your net, and yay, you got a bird feather. but you need to be very slow with no sudden movements. A way to harvest lots of these is to go in the sealed temple, and back out the big double doors, and a flock of birds should be hanging out there. if they fly away, just go through the doors and then back out again, and they should be there. other than there, you can find them almost anywhere in Faron woods.