Fledglings everywhere

Work has been keeping me beyond busy the past month and a bit, so I haven't had much - or any - time to focus on taking pictures. Any spare time I have been spent trying to finish up the garden, and that's about it. That said, we've had a lot of bird activity lately.

• Lots of fledglings being fed in our yard: robins, starlings, grackles, sparrows, and house finches.
• Our tree swallows must have hatched their eggs, because the activity level has been crazy. One is always inside the nesting box, and the other goes off and comes back a few minutes later with food. Then they'll switch off. Lather, rinse, repeat, from dawn 'til dusk.
• We suspect there's a Killdeer nest not far off our driveway in the wheat field. We have a lot of them in the fields adjacent to our property, but they're usually pretty far out. (Except the last two weeks, when they've actually been bathing in our pond.) Anyway, there's an adult Killdeer in the same spot every time we come or go, and we figure it can't be coincidence. That has to be its designated guarding-the-nest spot. I want to try to find the little cuties (seriously, baby Killdeer are so freakin' cute it should be illegal), but I don't want to stress out the parents.
• Baltimore Orioles are our new summer bird of plenty. Yesterday there were three adult males frolicking in our pond. Yes, at the same time. It was really odd, since they're usually so territorial towards each other.
• Hummingbird activity is depressingly bad. We've got maybe two males and two females, and they don't stick around for long. They also don't seem to have developed any kind of behavioral pattern that would let me get any decent shots. Very frustrating. Hopefully activity will pick up in August again. *fingers crossed*