If you find a baby bird that appears to be injured or in distress, it's natural to want to help.
If the baby bird is fully feathered and appears to be active, it is likely a fledgling that is learning to fly and may not require any help. In this case, it is best to leave the bird alone and let its parents continue to care for it.
If the bird is un-feathered or partially feathered and appears to be injured, it may need assistance. In this case, you can contact a local wildlife rehabilitation center for guidance on how to safely and properly care for the bird.
The U.S. Fish & Wildlife Service has published this smart information on what to do if you find a baby bird.
It is also important to note that it is illegal to keep wild birds as pets in many countries, and attempting to do so can be harmful to the bird's health and well-being.