Yes they do.
Nearly all birds can walk.
(Some birds that spend a lot of time on water find it difficult. Some, like Swifts, stay in the air.)
Yes
Pigeons are used as messengers because they can fly swiftly for long distances.
a pigeons can not fly
Every time they fly, its end with a landing.
No where. They stay in the nest until they are ready to fly.
The only bird that can fly backward is the hummingbird. They are able to fly backward because of their ability to hover. They evolved the ability to hover so they could sip nectar from flowers.
a pimple bug
Helicopters, the Harrier jumpjet.
It took me quite a while to find the answer to this question. But I have been informed by a gentleman in the states that they can fly.
duck and cover your about to get pooped on
OVER 9000 meters
You can't, they are either Homing Pigeons or they are not.