The Western Bluebirds (above, below, and in January archive link), Spotted Towhees (photos in December archive link), and maybe some other species I couldn't identify finally gathered around our Pyracantha berries. The fruit hung on so long I wondered if it might be bad tasting or even poisonous.
Apparently not. In fact, this Arizona State University Pyracantha sheet has a recipe for Pyracantha jelly. It also describes birds getting drunk on overripe berries, but this I did not see.
On January 16, I spotted these bluebirds in a feeding frenzy. Shortly after, we went away for a few days. By the time we got back, the bushes were picked clean. There are still Juniper berries about, and no snow covered the birds' normal feeding grounds, so I can only assume that once they discovered the berries they found them tasty enough.
It is puzzling that it took so long for the birds to show up. The fruit has been there in plain sight since at least October (above), when the berries were surrounded by red salvia blossoms, a hummingbird favorite.
And here they were well-preserved by an early December snow.
Now they are gone until the bush blossoms again in late summer or fall. Or so I hope.