Fledgling Starling - ground feeding

We had starlings nesting in eaves of house, baby has fledged but is in our back garden still being ground fed by parents. Is this normal? And if so, how ling might it be there? I’m trying to keep an eye out for neighbourhood cats but they’re sneaky! The baby doesn’t look distressed/injured and it looks pretty much adult sized. It’s come down quite a height from the roof though so if it can’t fly yet, it’s a bit stuck….