You have a lot of potential there, Camp.
Nell, come September or late August whenever the days start turning cool the northern birds will be flying through migrating south. That's the jump you get in the Ruby's. They are incredibly smart birds. They remember where the feeders are and will stop by your place next spring looking for them. I try to get mine out in late March. The first ones generally arrive in early April. Here's a link for you. They have a map so you can watch it in the spring and see when they start arriving.
Y
http://hummingbirds.net/
Here's a link to the map. It's obviously filled now but it will be empty over the winter.
http://www.hummingbirds.net/map.html