A little while ago, I wrote a plugin for WordPress that gives integration with the Bird Feeder Pepper. It’s very simple, and assumes the default installation setups for Mint and Bird Feeder. All you have to do is activate the plugin, and your RSS/RSS2/Atom feeds should start collecting stats in Mint.
If you use WordPress, and want it to work with Bird Feeder without hacking your WordPress core files by hand (which will break when you do a WP update), this plugin may come in handy.
I only provide an RSS2 feed on my blog, so I haven’t tested the RSS and Atom functionality, so please let me know if it does or doesn’t work with the RSS and Atom feeds.