Are Humming Bird Feeders a Good Idea
The food in humming bird feeders is nothing but sugar and red die - no nutrients of any time. When we put a feeder out we have a bird who feeds 6 or 7 times a day. Is it good for the bird's health to ingest sugar with no nutrients?
Hummingbird feeders are a fine idea, especially if there are not a lot of flowers for them to nectar from.
Here is more information, including how to easily make your own sugar solution. It is not necessary to add any food coloring so long as your feeder has red on it:
Cornell University has terrific information on birds. Here is their page on Hummingbirds: