We use a lot of visual feedback for my son. It would be great if I could post photos too.
This is a great suggestion! I will definitely add it to our list and keep you updated as we're able to prioritize it and it makes any progress.
In the interim, perhaps a way to get a version of this to work would be to use a tool where you can take a picture and get a link to it, and then put that link in the notes of one of your Birdhouse posts. For example, I know with Evernote you can easily take a picture and get a link to it.
This page has a list of A LOT of tools that might help you with this;
If you have more questions or want to share details about your idea, please let us know.