Grasshopper Sparrow
ENEndangered

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

01Classification

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.

02Description

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

IUCN StatusEndangered (EN)
GroupBirds
03Habitat

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...

TERRESTRIALMajorTERRESTRIALMajor
04Threats

Threats

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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

HighOngoing

Habitat loss from agricultural conversion

HighOngoing

Altered fire regimes and suppression

MediumOngoing

Invasive plant species altering grassland structure

MediumOngoing

Urban and suburban development

MediumOngoing
Community

Community Sightings

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07Sources

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

Full citation guide & data usage terms