Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science. A birdwatcher may observe by using their naked eye, by using a visual enhancement device like binoculars or a telescope, by listening for bird sounds, or by watching public webcams.
Most birdwatchers pursue this activity for recreational or social reasons, unlike ornithologists, who engage in the study of birds using formal scientific methods.
The first recorded use of the term birdwatcher was in 1901 by Edmund Selous; bird was introduced as a verb in 1918. The term birding was also used for the practice of fowling or hunting with firearms as in Shakespeare's The Merry Wives of Windsor (1602): "She laments sir... her husband goes this morning a-birding." The terms birding and birdwatching are today used by some interchangeably, although some participants prefer birding, partly because it includes the auditory aspects of enjoying birds.
In North America, many birders differentiate themselves from birdwatchers, and the term birder is unfamiliar to most lay people. At the most basic level, the distinction is perceived as one of dedication or intensity, though this is a subjective differentiation. Generally, self-described birders perceive themselves to be more versed in minutiae such as identification (aural and visual), molt, distribution, migration timing, and habitat usage. Whereas these dedicated birders may often travel specifically in search of birds, birdwatchers have been described by some enthusiasts as having a more limited scope, perhaps not venturing far from their own yards or local parks to view birds. Indeed, in 1969 a Birding Glossary appeared in Birding magazine which gave the following definitions:
Birder. The acceptable term used to describe the person who seriously pursues the hobby of birding. May be professional or amateur.
Birding. A hobby in which individuals enjoy the challenge of bird study, listing, or other general activities involving bird life.
Bird-watcher.