LC
Grasshopper Sparrow Ammodramus savannarum



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2021 Least Concern
2018 Least Concern
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Average mass 17 g
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 17,700,000 medium
Extent of Occurrence non-breeding (km2) 11,500,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 34000000 poor inferred 2019
Population trend Decreasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -

Population justification: The global population is inferred to number 34 million mature individuals (Partners in Flight 2019).

Trend justification: The species has been undergoing a large decline at an average rate of 2.5% per year between 1970 and 2017 (Partners in Flight 2019). Declines appear to be slowing down however; in North America, which holds almost the entire global population, the species declined by 23% over the past ten years (Pardieck et al. 2018). Furthermore, the future half-life of the species is estimated at 51 years (Partners in Flight 2019), which would equate to a decline of 13% over the next ten years. Data from the Christmas Bird Count report a much lower rate of decline of -0.32% per year (Meehan et al. 2018), equating to 3% over ten years. In view of this uncertaintly, the species is tentatively assessed as declining at a rate not approaching the threshold for Vulnerable over the relevant three generation period for this assessment.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Bahamas N Extant Yes
Belize N Extant Yes
Bermuda (to UK) V Extant
Bonaire, Sint Eustatius and Saba (to Netherlands) N Extant Yes
Canada N Extant Yes
Cayman Islands (to UK) N Extant Yes
Colombia N Extant Yes
Costa Rica N Extant Yes
Cuba N Extant Yes
Curaçao (to Netherlands) N Extant Yes
Dominican Republic N Extant Yes
El Salvador N Extant Yes
Guatemala N Extant Yes
Haiti N Extant Yes
Honduras N Extant Yes Yes
Jamaica N Extant Yes
Mexico N Extant Yes Yes
Nicaragua N Extant Yes
Panama N Extant Yes
Puerto Rico (to USA) N Extant Yes
St Pierre and Miquelon (to France) V Extant Yes
USA N Extant Yes Yes Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Puerto Rico (to USA) Vaqueria
Canada Kilpoola Lake Area
Canada Osoyoos Oxbows
Canada Carden Plain
Canada Napanee Limestone Plain
Bahamas San Andros Pond
Curaçao (to Netherlands) Sint Jorisbaai-Koraal Tabak, Curaçao

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Pastureland suitable breeding
Grassland Subtropical/Tropical Dry suitable breeding
Grassland Temperate suitable breeding
Shrubland Subtropical/Tropical Dry suitable breeding
Shrubland Temperate suitable breeding
Altitude 0 - 1300 m Occasional altitudinal limits (max) 3000 m

Recommended citation
BirdLife International (2022) Species factsheet: Ammodramus savannarum. Downloaded from http://www.birdlife.org on 14/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 14/08/2022.