Nästling
Nästling is a Swedish term that translates to "nestling" in English. It refers to a young bird that is still in its nest and dependent on its parents for care. Nestlings are typically born blind and featherless, or with only a sparse covering of down. They remain in the nest for a period ranging from a few weeks to several months, depending on the species. During this time, their primary activities involve feeding, growing, and developing the feathers and strength needed for flight. Parents are responsible for bringing food to the nestlings and protecting them from predators. The stage of being a nestling is a crucial phase in a bird's life cycle, as it prepares them for independence. Once a nestling has developed sufficiently, it will fledge, meaning it will leave the nest for the first time, though it may still be fed by its parents for some time afterward. The term is generally used in ornithology and wildlife discussions.