Cool and mostly overcast. A phoebe hawks insects low to the ground. An hour later, I’m pleased to find I can now i.d. a yellow-throated vireo’s call—so much hoarser and more rushed than its red-eyed or blue-headed cousins.

A gloomy morning punctuated by brief showers. I look up at one point to spot a male hummingbird rocketing back and forth above the creek, performing for a female perched in a black elderberry bush that has just leafed out.