Each piece of baggage in excess of the free baggage allowance specified above that is not in excess of 62 inches (L+W+H) and 50 lbs. or less will be accepted for a charge of $75.00 per item one-way.
Best Answer: The standard is 10 to 12 hours a night. This is normally what birds sleep...seasonally a little more or less, depending on daylight hours. Most birds sleep when it is dark. In the wild, dark means danger.
Confidence votes 86. That depends totally on the kind of bird. some birds of prey take weeks before they can leave the nest, while I've seen chickadees hatch their eggs, raise the young, and be gone in a week. most songbirds take a week to two weeks, while some larger birds and birds of prey take much longer.hey'll look like, and fly nearly as  well as, adults in another two weeks.    The only birds that MIGHT take as long to fly as the above user  claims would be very large birds of prey like eagles or owls. But I  really don't think even they spend that much time in the nest.