BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Cliff Swallow In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsAerial insectivores

Cliff Swallow in Sonoran and Mojave Deserts has held roughly steady: up 4% on the route-weighted index since 1970.

+4%Since 1970
45Routes In Region
56Years

Notable Signals

No notable trend signals for Cliff Swallow in Sonoran and Mojave Deserts. See the full index history below.

Forecast

If the recent trend holds, Cliff Swallow in Sonoran and Mojave Deserts is projected to rise about 205% by 2029 — from 5.7 in 2024 to a central estimate of 17 (95% range 0.00–41). A 5-year backtest shows a typical error of ±134%, with 100% of held-out values landing inside the 95% band.

+205%Change by 2029
17Projected 2029 index
0.00–4195% range
±134%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
2025170.0041
2026170.0041
2027170.0041
2028170.0041
2029170.0041

Routes In Sonoran and Mojave Deserts

Routes recording Cliff Swallow in Sonoran and Mojave Deserts.
Imperial DamCALIFORNIA2622010
Alamo RiverCALIFORNIA2332018
Calif CityCALIFORNIA821977
DatelandARIZONA662024
Coachella CnCALIFORNIA602013
Cactus ForestARIZONA482024
BrawleyCALIFORNIA482012
LagunaARIZONA422023
Casa GrandeARIZONA362023
Cutter 2ARIZONA332018
FlorenceARIZONA301976
VicksburgARIZONA241989
GlamisCALIFORNIA212018
OnyxCALIFORNIA202015
Palo VerdeCALIFORNIA202024
NilandCALIFORNIA172024
BlytheCALIFORNIA161979
Cibola LakeARIZONA152024
PearblossomCALIFORNIA152019
New RiverARIZONA132016
CoolidgeARIZONA101985
Willow Beach 2ARIZONA92019
Lone PineCALIFORNIA92023
Hope 2ARIZONA82019
Parker DamCALIFORNIA81978

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