Away in the sunshine, at the moment and didn't even have a "proper" camera with me - but this couldn't be missed - right by my sunbed in the grounds of the hotel - sweet :-)
So cute. I once heard, Sparrows are so social, that they feet also the youngsters of other sparrows.
It seemed like it - there were several that were feeding that one fledgling. It was beside my sunbed for ages 😀