Yes, it will grow back when he/she molts out their tail feathers next. However, since your bird does appear to be chewing on its feathers a trip to the vet is also in order to avoid the problem becoming worse.
Yes, it will grow back when he/she molts out their tail feathers next. However, since your bird does appear to be chewing on its feathers a trip to the vet is also in order to avoid the problem becoming worse.
How does a trip to the vet help?