A black-capped chickadee by any other name is a Poecile atricapillus.
That’s the bird’s scientific name, the reference used worldwide to avoid the confusion a list of local names could offer.
For instance, an Idaho natural history website lists these names also used for the same bird: Appalachian chickadee, black-capped titmouse, black-capped tit, Oregon chickadee, Yukon chickadee, common chickadee, long-tailed chickadee, and western titmouse.
Hey, one might say, which bird are we talking about?
The scientific name is used almost exclusively in scholarly publications, but can be found in your ID guides, too.
Online you can find more than one translation of the Latin Poecile atricapillus to English. The site 10,000 Things of the Pacific Northwest tells us that, “Poecile comes from a Greek word meaning ‘many colored.’ With a slight suffix change it also meant ‘a small bird.’ The species epithet atricapillus means ‘black head hair.’” Thus, the black-capped chickadee.
North America also has these chickadee species: Carolina (Poecile carolinensis), mountain (Poecile gambeli), gray-headed (Poecile cinctus), boreal (Poecile hudsonicus), Mexican (Poecile sclateri), and chestnut-backed (Poecile rufescens).
There can be several reasons behind the Latin or Latinized name given to a bird. Philip Sclater was a British zoologist for whom several birds were named. Carolinensis designates a range including North and South Carolina. Dr. William Gambel was an important 19th-century ornithologist in California. Hudsonicus refers to northern portions of the U.S. and Canada. Rufescens is a red tinge.