budgie feathers

This is my Budgies tail feathers, the rest of his tail is fine, there's just a gap in between where there isn't any feathers. Is this just a normal part of moulting or something else? Any help would be greatly appreciated, thanks

I'm not sure how to tell if my birds are moulting or not. There was a period of time where there were a lot of small feathers around their cage (and in the floor near it), then it sort of slowed down. Now it seems to have picked up again. Maybe my male budgie is actually moulting? He shook his...