Hello and welcome to BYC!
I think its a breast blister. What is the material of your perches?
I think its a breast blister. What is the material of your perches?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
You might want to post in the ER forum here, you likely get more help there.Their perches are 2x4 up on the 2" side. They've been used for 3+ years so they're smooth at this point. Pine shavings in their nest boxes and on the floor.