BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Black-throated Sparrow In Great Basin

All regionsGreat BasinArid-land birds

Black-throated Sparrow in Great Basin has fallen sharply: down 65% on the route-weighted index since 1970.

-65%Since 1970
122Routes In Region
55Years

Notable Signals

long arc declinecomputed index

Black-throated Sparrow has fallen sharply in Great Basin: down 65% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Black-throated Sparrow in Great Basin is projected to fall about 26% by 2029 — from 4.2 in 2024 to a central estimate of 3.1 (95% range 0.00–7.5). A 5-year backtest shows a typical error of ±25.4%, with 100% of held-out values landing inside the 95% band.

-26%Change by 2029
3.1Projected 2029 index
0.00–7.595% range
±25.4%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20253.30.007.6
20263.20.007.6
20273.20.007.5
20283.20.007.5
20293.10.007.5

Routes In Great Basin

Routes recording Black-throated Sparrow in Great Basin.
ThorneNEVADA1361979
Big PineCALIFORNIA842024
SutcliffeNEVADA751972
Rye PatchNEVADA721974
Big Smokey VNEVADA611988
Darroughs Hot SpgsNEVADA542024
Piute MdwsNEVADA532024
Desert NwrNEVADA522024
Sand PassNEVADA502024
Trout CreekOREGON462021
Tule ValleyUTAH442013
WillisNEVADA372024
HikoNEVADA312023
Mill CityNEVADA312021
Fish CreekNEVADA282021
Notch PeakUTAH282024
Carson RiverNEVADA272005
Salt SpringsUTAH252024
CallaoUTAH232024
Dobbin CreekNEVADA222018
Gold HillUTAH222024
Catlow RimOREGON212024
BentonCALIFORNIA202024
CalienteNEVADA182021
GandyUTAH172015

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.