I also heard the same stories as a child!!!
According to the National Aviary ..(Click Here). Here are the answers of two FAQ's.
I've found a baby bird. Is there something I can do to help it?
Most baby birds that are presumed orphaned usually aren't. To determine if the bird is simply separated from its parents, look around for the nest or the parents. If the bird has developed adult feathers, has a short tail, and is able to hop along the ground, the parents are probably nearby. The bird will probably attempt to fly again soon. Human interference may impede a valuable flight lesson. If the bird is in direct sunlight, try to move it to a shaded area.
If the chick still has its soft, fluffy down feathers, try to return it to its nest. Birds have little or no sense of smell and will be unable to detect that the chick has been handled.
When a bird is purposely pushed out of a nest, it may not be healthy. Adult birds can sense when a developmental problem exists. The mother will push the bird out rather than expend valuable food and energy on a chick that will not survive. It is difficult for people to determine if a bird has developmental problems simply by its appearance. If you are in doubt, please consult a licensed wildlife rehabilitator. These individuals are trained and experienced in helping orphaned and injured wildlife. Call your local game commission or sheriff for information.
I've found an injured bird. What should I do?
If you find an injured bird, we recommend that you contact your regional Pennsylvania Game Commission of fice or local sheriff for the name of a local licensed wildlife rehabilitator specially trained to care for injured birds. If you are able to locate a professional rehabilitator who will accept the bird, place it in a cardboard box, paper bag, or garbage can, depending on its size. The bird should be kept somewhere dark, quiet, and warm. Injured birds may be in shock and should ideally be in a 80-85 degree temperature range.
The National Aviary is unable to accept injured birds. We lack the space to house them properly and they pose a possible health risk to our collection. Remember - it is illegal for private individuals to possess native wild birds. In addition, caring for injured and orphaned wild birds requires special facilities and training.
[This message has been edited by TexasJoe (edited 07-08-2000).]