
Grasshopper Sparrow
Ammodramus savannarum
The grasshopper sparrow is a small New World sparrow. It belongs to the genus Ammodramus, which contains three species that inhabit grasslands and prairies.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Grasshopper_sparrow
Taxonomy & Classification
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Passeriformes
Family
Passerellidae
Genus
Ammodramus
Grasshopper Sparrow belongs to the family Passerellidae, order Passeriformes, within the Aves class.
Species Profile
The grasshopper sparrow is a small New World sparrow. It belongs to the genus Ammodramus, which contains three species that inhabit grasslands and prairies. Grasshopper sparrows are sometimes found in crop fields and they will readily colonize reclaimed grassland. In the core of their range, grasshopper sparrows are dependent upon large areas of grassland where they avoid trees and shrubs. They seek out heterogenous patches of prairie that contain clumps of dead grass or other vegetation where they conceal their nest, and also contain barer ground where they forage for insects, spiders, and seeds. Grasshopper sparrows are unusual among New World sparrows in that they sing two distinct song types, the prevalence of which varies with the nesting cycle. The primary male song, a high trill...
Grasshopper Sparrows are declining primarily due to widespread loss and fragmentation of native grassland habitats from agricultural conversion, urban development, and altered fire regimes. The species requires large expanses of contiguous grassland with specific vegetation structure, making it particularly vulnerable to habitat modification and degradation.
Key Facts
Habitat & Distribution
Late-July grasshopper sparrow territory with nest at the Konza Prairie showing preferred patchiness of vegetation including low ground for foraging and denser patches in which to conceal nests. Their breeding habitat is open fields and prairie grasslands across southern Canada, the United States, Mexico and Central America, the Caribbean. There is a small endangered population in the Andes of...
Threats
IUCN Red List: Endangered
Grasshopper Sparrows are declining primarily due to widespread loss and fragmentation of native grassland habitats from agricultural conversion, urban development, and altered fire regimes. The species requires large expanses of contiguous grassland with specific vegetation structure, making it particularly vulnerable to habitat modification and degradation.
Grassland fragmentation and edge effects
Habitat loss from agricultural conversion
Altered fire regimes and suppression
Invasive plant species altering grassland structure
Urban and suburban development
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Grasshopper Sparrow (Ammodramus savannarum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/grasshopper-sparrow