tree martin

Thân thiện

A tree martin builds its nest in a hollow branch.

Definition

Noun: 1. A small migratory swallow of Australia and Polynesia (Petrochelidon nigricans): A bird species that builds its nest in natural cavities or hollows within trees.

Usage

• The tree martin is often seen flying in large flocks over open country.
• Unlike some swallows that nest on cliffs, the tree martin prefers wooded areas for breeding.
• Researchers are studying the migration patterns of the tree martin.

Advanced Usage

• As a collective noun: A flock of tree martins can be a spectacular sight at dusk.
• In ecological context: The presence of tree martins can indicate a healthy ecosystem with mature trees providing nesting sites.

Variants and Related Words

• Tree Swallow: While a different species () native to the Americas, this is a related common name that also describes a swallow nesting in tree cavities, which can sometimes cause confusion.
• Petrochelidon nigricans: The scientific binomial name for the tree martin.

Synonyms

• Australian Tree Martin: A more descriptive full common name.
• Petrochelidon nigricans: The formal scientific synonym.

Related Phrases

• Nesting cavity: The hollow in a tree used by the tree martin for its nest.
• Aerial insectivore: An ecological term describing the tree martin's feeding habit of catching insects in flight.

Học thuật

Noun

1. of Australia and Polynesia; nests in tree cavities

Từ đồng nghĩa

• tree swallow
• Hirundo nigricans