Last week, a reader named Joy emailed me a photo of a bird that she couldn’t quite identify. One look at the photo, and I instantly understood both the observer's confusion and the mystery bird's ...

Chickadees are plump, sparrow-sized birds with tiny beaks. Mountain chickadees are a bit larger and stockier than the black-capped chickadee. Both species have a black cap and throat with a white ...

Sofia Marie Haley does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...