We have two pairs of barn swallows. One pair nested in our shed this year, but I don't think any of their babies made it. The other pair nested in our garage for the fourth or fifth year in a row and had 5 or 6 babies. 5 of them made it. Here they are a day or so before their first adventure out.

Here's one of them on his first day out. You can tell he's a youngster by the color of his breast. The adults are darker.

While the other three are out getting flying lessons, these two wait their turn.