LC
Lawrence's Goldfinch Spinus lawrencei



Justification

Justification of Red List category
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Trend justification
This species has undergone a small or statistically insignificant decrease over the last 40 years in North America (data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007).

Distribution and population

This species breeds in central and southern California and western Arizona, USA, and in northwestern Baja California, Mexico (AOU 1983). Its wintering range extends through and beyond its breeding range, into northern California, central Arizona, southwestern New Mexico and formerly extreme western Texas, USA (AOU 1983), and Sonora and probably Chihuahua in Mexico (Howell and Webb 1995a).

Ecology

This species inhabits arid to semi-arid open deciduous pine-oak woodland, oak woodland, chaparral, and pinyon-juniper vegetation, often near water (AOU 1983, Howell and Webb 1995a). The species occurs from sea level to 2,500 m (Howell and Webb 1995a).

Acknowledgements

Text account compilers
Fisher, S., Butchart, S., Harding, M., Ekstrom, J.


Recommended citation
BirdLife International (2024) Species factsheet: Lawrence's Goldfinch Spinus lawrencei. Downloaded from https://datazone.birdlife.org/species/factsheet/lawrences-goldfinch-spinus-lawrencei on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/11/2024.