from hummingbirds.net
"There's a hummingbird trapped in my garage!
I get a couple of calls like this every summer, just in my own neighborhood.
The government insists that all garage doors have red emergency release handles. Unfortunately, to a hummingbird they look a lot like trumpet creeper flowers, one of their favorites, and they fly in to investigate. But hummers aren't particularly intelligent and don't have a natural concept of ceilings, and when they get scared their immediate reflex is to fly straight up, which only compounds the problem. In an hour, a trapped and exhausted hummingbird can starve to death. What to do?
First, keep pets and kids away so they won't make the bird more anxious, and try hanging your most popular feeder in the door opening and stand back. Sometimes this will bring a hungry bird to feed, and it may fly off in the correct direction when it's finished. But this doesn't always work, and you shouldn't waste too much time - the bird's clock is ticking. If the hummer isn't gone within 10 minutes or so, turn on the inside garage light, close the overhead door, and get a flashlight. When the hummer flies over a clear section of the floor, turn off the light. Hummingbirds have poor night vision and don't like to fly in the dark, and the bird will flutter gently to the floor. Turn on your flashlight, find the bird, and scoop it upgently in your cupped bare hands. Have an assistant open the door, and carry the hummer away from the garage. Offer the bird a drink by holding it close to the feeder, but don't try to force it. After it drinks, or refuses to drink, open your hands, and when the bird reorients itself, it will fly away - probably straight up. It may lie still in your hand for several minutes, or it may leave immediately. Hummingbirds don't usually carry parasites, but wash your hands afterward anyway.
To prevent a recurrence, keep your garage door closed when you don't actually need it open. You should also ignore the government and remove the temptation, by painting the release handle a dark color (black is good), or at least looping it up out of sight. Look for and hide any other attractive red items, such as paint can labels. Remind your neighbors, gently, of the trouble with red garage door release handles.
Note: if your garage has windows and cannot be darkened, this rescue technique won't work. Instead, hang the feeder high up, inside the garage, so the bird can feed itself and rest comfortably. Leave it alone, and leave the door open in case it calms down enough to figure out how to leave. Near dusk, the flashlight technique will work better."