I always enjoy the postings about hummers! I believe that peak southbound
migration through Ada County and through the South Hills near Twin is during
late July through mid-August, based primarily on sugar-water consumption.
Might be similar for the feeders at Silver City in Owyhee County..?

Our usual peak is 20+ hums fussing over our 10 feeders, mostly Black-chins
with an occasional Rufous and Calliope. During the winter of 2015-16, we
had a peak of 4 Anna’s, and we know this because Heidi and Jessica had come
over for banding. =) I really miss the Broad-tails we had in western
Colorado, and of course all those SE Arizona specialties.

This is the time of year that Ospreys, Collared-doves, and Screech-owls are
doing a lot of yipping and hollering in our hood. I’m thinking it has to do
with fledged birds on the loose, eh?

Larry

Boise