This American Robin Fledgling is the first fledgling I came across while mowing my yard this summer. I have to be careful and watch for the baby birds when I mow. Some of them are very difficult to see. I saw two of these American Robin Fledglings this time and they both seem to be doing good. I saw them both being fed.
Fledging is the stage in a young bird's life between hatching and flight. For altricial birds, those that spend more time in vulnerable condition in the nest, the nestling and fledging stage can be the same. For precocial birds, those that develop and leave the nest quickly, a short nestling stage precedes a longer fledging stage.
All birds are considered to have fledged when the feathers and wing muscles are sufficiently developed for flight. A young bird that has recently fledged but is still dependent upon parental care and feeding is called a fledgling. People often want to help fledglings, as they appear vulnerable, but it is best to leave them alone.
In many species, parents continue to care for their fledged young, either by leading them to food sources, or feeding them. Birds are vulnerable after they have left the nest, but before they can fly, though once fledged their chances of survival increase dramatically. (Wikipedia)