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The field sparrow (Spizella pusilla) is a small New World sparrow.
Adults have brown upperparts, a buffy breast, a white belly, two whitish wing bars and a dark-brown forked tail. They have a grey face, a rusty crown, a white eye ring and a pink bill. They have rusty markings behind the eye. There are grey and rufous colour variants.
|length||5.1–6 in (130–150 mm)|
|weight||12.5 g (0.44 oz)|
|wingspan||8 in (200 mm)|
|wing||62.7–67.8 mm (2.47–2.67 in)|
|tail||62–68.4 mm (2.44–2.69 in)|
|culmen||8.7–9.8 mm (0.34–0.39 in)|
|tarsus||17.6–18.9 mm (0.69–0.74 in)|
Distribution and habitat
Their breeding habitat is brushy, shrubby fields across eastern North America. The nest is an open cup on the ground under a clump of grass or in a small thicket.
These birds forage on the ground or in low vegetation, mainly eating insects and seeds. They may feed in small flocks outside the nesting season.
The male sings from a higher perch, such as a shrub or fencepost, which indicates his ownership of the nesting territory. The song is a series of sad whistles ending in a trill, often compared to the accelerating sound of a bouncing ball.
This bird's numbers expanded as settlers cleared forests in eastern North America, but may have declined in more recent times.
- BirdLife International (2012). "Spizella pusilla". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Godfrey, W. Earl (1966). The Birds of Canada. Ottawa: National Museum of Canada. p. 395.
- Sibley, David Allen (2000). The Sibley Guide to Birds. New York: Knopf. p. 483. ISBN 0-679-45122-6.
|Wikimedia Commons has media related to Spizella pusilla.|
|Wikispecies has information related to: Spizella pusilla|
- Field sparrow species account - Cornell Lab of Ornithology
- Field sparrow - Spizella pusilla - USGS Patuxent Bird Identification InfoCenter
- Field sparrow videos, photos, and sounds at the Internet Bird Collection
- Field sparrow photo gallery at VIREO (Drexel University)
- Interactive range map of Spizella pusilla at IUCN Red List maps
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