So I don't know how this is implemented. Apparently the waterfowl feather, unspoiled rare item from Swiftperch botany node, shares his spot with unaspected crystal. I didn't know about this and I find it very unpleasant tbh. Just wasted another hour trying to get the feather but getting the crystal instead, this has happened now twice in a row. I still need the third feather to make a cushion...
You can't rise the yield of this, it's a single drop, and even to make things more challenging aka annoying, it shares his placeholder with the unaspected crystal. GG
Damnit, it's a forsaken feather, not a relic item >_>