Plugin: Feedburner Detecter
Feedburner Plugin v2.1 forwards all your feed traffic to FeedBurner. The plugin will detect all ways to access your feed (e.g. www.yoursite.com/feed/ or www.yoursite.com/wp-rss2.php, etc.), and redirect them to your FeedBurner feed so you can track every possible subscriber. It will forward for your main posts feed, and optionally your main comments feed as well.
[...] can still redirect the people who are subscribing to your blog’s original feeds using this Feedburner plugin - this makes sure everyone’s on one service, ie. [...]