Sparrow Babies

Already for some time I have heard the baby sparrows under the garage roof and seen the parents bring them food. I wonder are they the same couple who were there last summer. Yesterday in the morning when I looked up I saw three hungry babies screaming for food and soon enough a parent came and all three opened their mouths. They actually look fully grown already and ready to leave the nest. One even came outside (pics 3 and 4) and it looked like it wanted to follow the parent. But, then went back in. They are so cute but messy. We need to clean it up a bit when they have moved away.