Guild · Nevada · BBS 2025 Release · 1966–2024

Arid-land Birds In Nevada

8 species in this guild. As a group they are -60% since 1970.

Guild Signals

guild collapsecomputed index

Arid-land birds as a group have fallen sharply in Nevada, down 60% since 1970.

Forecast

If the recent trend holds, Arid-land birds in Nevada is projected to fall about 90% by 2029 — from 2.7 in 2024 to a central estimate of 0.27 (95% range 0.00–9.4). A 5-year backtest shows a typical error of ±73.3%, with 100% of held-out values landing inside the 95% band.

-90%Change by 2029
0.27Projected 2029 index
0.009.495% range
±73.3%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
20250.780.009.9
20260.650.009.8
20270.530.009.7
20280.400.009.6
20290.270.009.4

Member Species In Nevada

Arid-land birds species in Nevada.
Black-tailed GnatcatcherPolioptilidae-74%
Cactus WrenTroglodytidae-72%
Black-throated SparrowPasserellidae-54%
Greater RoadrunnerCuculidae-7%
VerdinRemizidae+127%
PhainopeplaPtiliogonatidae+354%
Gambel's QuailOdontophoridae+662%
Lucy's WarblerParulidae+923%

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