Learning from the birds
Nice to see that there has been some public mention of the recent philosophical discussion over chickadee songs (Singing a new song, Friday, June 6). Quite frankly, I think N. Thomas and R. Davis are off in their description of the chickadee notes. Perhaps this particular bird sings three notes from A-sharp to G-sharp to G. Not particularly impossible for a chickadee, but rather unusual.
Perhaps Thomas and Davis are referring to a Rocky Mountain black-capped chickadee when they mention a mountain chickadee, black-capped being poecile atricapillus, and Rocky Mountain being poecile atricapillus garrinus. We cannot know without further scientific intervention.
However, it should be noted that the black-capped chickadee is known to have at least 15 different calls. The individual notes are not particularly ingrained into the genus or species as a whole, but the poetic meter seems to be.
My guess is that the chickadees are not learning, but the humans are.
Tony Vagneur
Basalt