Birds can become intoxicated on fermented berries. I remember a translation in a high school French class (or was it German?) about chickens getting drunk on overripe cherries — overdoing it on home brew kirsch. Not really a scientific source but then I’m no scientist so I’m prepared to accept it.
Certainly, the Cedar Waxwings and Robins up here on Observatory Hill are acting like they’re well into their cups. The Robins shoot me belligerent looks and pretend they run the place. A couple even faux buzz-bomb me. They obviously didn’t see the Peregrine that just overflew the mountain!
There must dozens of birds here and they’re goofing around big time, flitting from Arbutus to Arbutus, eating berries, chirping – loud. Their landings seem unsteady too. The Waxwings seem more sedate. Maybe they’re just at a different stage in the party. Most of them. There’s always the odd goofball, of course, who doesn’t know when to quit.