Yep, not sure where she got that information...known for gleaning, not ground forage. I'm also going to suggest that they offer a native over the pyracantha
Those are good. In my post I suggested evergreens because they are important for winter cover for chickadees and their original blurb talked about cover.
Sounds like a good opportunity to leave a comment on that page, thanking them for trying to help birds, but drawing their attention to the problem of invasive