A few months ago, Flutter developed a small growth right back of his/her eye and didn't seem any the worse for wear or act as if anything was going on. For a couple of months, it just looked like a feather that wouldn't lay down properly but I finally trapped Flutter and determined it was not a feather. The growth has increased in size (length-wise) but has not spread past the initial site to cover more of the bird's body.
Noboby local

I'd take a picture but the birds go into utter panic mode, and I don't want to stress Flutter any more than necessary. So far, appetite is relatively unaffected (I think).
Normally, the two finches spend most of their day either in their uppermost seed dish or on a grapevine perch that "cradles" the two (with Flit only having one leg we've made the cage as "footicapped" friendly as possible. Those spots have always been where they've spent their time so no changes there. However Flutter is having a hard time getting up to their favorite spots because it seems such an effort to fly now. That has only happened within the last two days.
Any advice anyone can offer is greatly appreciated. I'm sure Flutter and Flit would second that if they knew I was writing!
PS. I'm in Colorado