What does passerine mean?
Passerine is chiefly a zoological noun for any bird in the order Passeriformes, a major group commonly called the perching birds or songbirds. It includes familiar species such as sparrows, robins, finches, jays, wrens, and swallows, as well as thousands of less familiar tropical birds. As an adjective, passerine describes birds belonging to this order or features characteristic of them. The term is especially useful in birdwatching, migration studies, ecology, and conservation research because it identifies a broad taxonomic group without naming a particular species. In general writing, a more specific common name is usually preferable, but passerine can clarify that a discussion concerns this major branch of the bird family tree. Its defining feature is not song alone: many passerines are not renowned singers, and although most can perch well, the broader order contains considerable variation in behavior, appearance, diet, and habitat.
A bird belonging to the order Passeriformes, comprising the perching birds and commonly called songbirds.
"A wren is a small passerine with a surprisingly loud song."
The word is used in specialist zoology and birding contexts and may denote either an individual species or a member of the wider order.
Belonging to, characteristic of, or relating to birds of the order Passeriformes.
"The reserve supports an exceptionally diverse passerine community."
Often used in compound forms such as passerine birds, passerine species, and passerine diversity.
The plural passerines refers to multiple birds of the order Passeriformes; the singular passerine refers to one such bird.
"Several passerines gathered around the feeder."
Passeriformes is the largest order of living birds, containing roughly six out of every ten bird species.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does passerine come from?
Passerine comes from Modern Latin passerinus, meaning “of the sparrow kind” or “pertaining to sparrows,” from Latin passer, “sparrow.” The word entered English in the 19th century as both a noun and an adjective. Its taxonomic relatives include passer and the forms passeriform and passeriformes, all reflecting the same Latin root.
How passerine is actually used
This is primarily a technical zoological and birding term. In specialist classification, oscine can have the narrower meaning of a bird in the oscine suborder, although it is often used more broadly for passerines. Rhymes vary with accent: certain and curtain match the US pronunciation, while serene and machine match the UK pronunciation.
Easily confused with passerine
A passerine is a member of the bird order Passeriformes, whereas a passer can mean someone who passes something or, in an older or specialized sense, a sparrow.