However, you could use some creative options like:
* Brood: This is commonly used for young birds, and it works well since fledglings are still dependent on their parents.
* Hatchling: This is a more general term for newly hatched creatures, but could be applied to fledglings.
* Nestlings: Though not exactly fledglings, this term could be used as they're still young and dependent.
Ultimately, the best term to use would depend on the context and the specific type of fledglings you are referring to.