Jules, I'm not sure what you're looking for - I'm new to hummingbird feeders and to this forum, but you might want to try a website called "Best Nest"...you can reach them at www.bestnest.com. They have a very nice selection of feeders and feeder parts.

I'd never seen a hummingbird in my life until this summer when I saw one hovering around my Jacob Kline monarda. Now I see one there almost every day. The flowers are nearly spent, so I put a little feeder very close to where the flowers are, hoping that this little guy will make the transition (and maybe bring some of his friends). Here in Illinois, there's only one kind of hummer that stays all summer; but this is a migration path for many others, and August is when the migration happens...so I'm hoping for great things...

And I wish you great things with your quest!