Here's a link to an amazing live video-cam set up near the nest of a hummingbird. Watch the mom come and go, and the babies as they develop. You have to watch during daylight hours here on the Pacific Coast of the U.S., so figure that time out from wherever you are. This camera will probably only stay active for a few days--the chicks grow up fast.

http://www.ustream.tv/channel-popup/Hummingbird-Nest-Cam