Here's a very short (really, only 13 seconds) video showing swallows entering and leaving a nest:
I've also been encountering fledgling birds on campus this week. I'm not very good at identifying youngsters, though I'm fairly certain this one is a young Song Sparrow:
And this is a different fledgling that was hanging out near the Song Sparrow, looking a bit different, but probably another one, although it may possibly be a White-crowned Sparrow fledgling instead:
Opinions welcomed! I've seen adults of both species in this particular area.
Looks like we'll have a sunny Saturday and I have no firm plans so far. Happy almost weekend!