I save them all! I have a jar full of Puck's feathers, and I'm glad I kept them. I still find one occasionally around the house, and I add it to the collection.
Darcy hasn't lost any feathers since I've had him, but I will save those too.
That must be sad to find his feather randomly
Wow, that is a lot! And Rosie's feathers are just beautiful! I do have lots of cockatiels feathers from all the cockatiels I had and have now (I had in total 6 cockatiels). But it's all at my old house, I'll try to take a pic next time when I go there.
I don't have any feathers from Ozzie since he hasn't had his molt yet. And I heard that Alexandrine go through pretty heavy molt, so soon, soon I will have lots of feathers from Ozzie
I've been collecting them since august 2011 when I brought her home

I've always loved feathers, I have a bunch of blue and gold, raptor, and various bird feathers I've been given and found. I love cockatiel feathers, they are so pretty. One of the prettiest feathers I have is a center tail feather from my friends pied cockatiel. I bet a photo of all your tiel feathers together will look really cool.
I love Alexandrina tail feathers, it will be exciting the first time Ozzie molts one and you find it
Here's a (bad)photo of my vase filled with feathers, it's off instagram so it's cropped funky. I have some more in a sword box under my bed. I don't pick up random feathers anymore though, unless it's really
really cool. If I do I make sure to sanitize it. The gray feathers are Rosie's, her finger feathers are in there too but they are harder to see because they're darker.
Hi
I kept all my lovebirds feathers. I still have them even though he has passed.
I have now started to collect my Rainbow Lorikeets (Rosie's) feathers. It's interesting to hear ideas what to do with them.
They have beautiful feathers, I love rainbow lorikeets.
I had thought about making toys with Rosie's feathers, she is much better about chewing and plucking, but on occasion I still find a blood feather on the bottom of her cage. I thought that maybe a toy made of her own feathers might help distract her(she loves playing in her feathers when I take them out)