The other day, I added the link to Cornell's Feederwatch program because of the claim that they do not recommend bird feeding. I did so to show that not only do they not take issue with bird feeding but that they have an entire program, website with multiple web pages, and a worldwide feeder network viewable on bird cams that run 24/7.
The link I posted earlier directs to the live cams but here is the actual link for their homepage:
Project Feederwatch Home
If you want to save the planet's nature from ourselves, start with pollution and habitat destruction. More than anything else, that is what drives extinction and extirpation.