Hummingbirds regularly take nectar from very tall flowering trees and have been reported visiting feeders hung from balconies several stories high, so any height that you can reach will be fine. What's most important is being able to take the feeder down easily for regular cleaning and refilling (every two to five days, depending on the weather).
no
the Hummingbird
The hummingbird.
a hummingbird
No
If too warm/hot the hummingbird will not feed.
Not far.
backwards
hummingbird
Hummingbird
They fly fast.
they can't.only the hummingbird can.