BirdAnalyst
Guild · California · BBS 2025 Release · 1966–2024

Forest Birds In California

All statesCalifornia

51 species in this guild. As a group they are +22% since 1970.

Guild Signals

No notable trend signals for forest birds in California. See the full index history below.

Forecast

If the recent trend holds, Forest birds in California is projected to rise about 28% by 2029 — from 1.9 in 2024 to a central estimate of 2.4 (95% range 2.0–2.9). A 5-year backtest shows a typical error of ±32.1%, with 0% of held-out values landing inside the 95% band.

+28%Change by 2029
2.4Projected 2029 index
2.0–2.995% range
±32.1%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
20252.41.92.9
20262.41.92.9
20272.42.02.9
20282.42.02.9
20292.42.02.9

Member Species In California

Forest birds species in California.
Gray VireoVireonidae-83%
Lewis's WoodpeckerPicidae-75%
Ruby-crowned KingletRegulidae-75%
Varied ThrushTurdidae-65%
Pygmy NuthatchSittidae-65%
Plumbeous VireoVireonidae-63%
Juniper TitmouseParidae-61%
Wilson's WarblerParulidae-57%
Chestnut-backed ChickadeeParidae-46%
Mountain BluebirdTurdidae-31%
Swainson's ThrushTurdidae-19%
Western BluebirdTurdidae-18%
Canyon WrenTroglodytidae+4%
Yellow WarblerParulidae+7%
Townsend's SolitaireTurdidae+11%
Hermit ThrushTurdidae+11%
Bewick's WrenTroglodytidae+14%
Hutton's VireoVireonidae+17%
Ladder-backed WoodpeckerPicidae+18%
Northern House WrenTroglodytidae+24%
Orange-crowned WarblerParulidae+32%
American RobinTurdidae+33%
Downy WoodpeckerPicidae+33%
Warbling VireoVireonidae+34%
Williamson's SapsuckerPicidae+40%
Mountain ChickadeeParidae+42%
Rock WrenTroglodytidae+46%
Oak TitmouseParidae+48%
Nuttall's WoodpeckerPicidae+49%
Acorn WoodpeckerPicidae+54%
California GnatcatcherPolioptilidae+58%
White-breasted NuthatchSittidae+66%
Black-throated Gray WarblerParulidae+87%
White-headed WoodpeckerPicidae+117%
Black-capped ChickadeeParidae+119%
Hairy WoodpeckerPicidae+134%
Red-breasted SapsuckerPicidae+150%
Black-backed WoodpeckerPicidae+177%
Pileated WoodpeckerPicidae+177%
MacGillivray's WarblerParulidae+219%
Cassin's VireoVireonidae+287%
Brown CreeperCerthiidae+308%
Red-breasted NuthatchSittidae+347%
Pacific WrenTroglodytidae+353%
Nashville WarblerParulidae+435%
Hermit WarblerParulidae+446%
Blue-gray GnatcatcherPolioptilidae+532%
Golden-crowned KingletRegulidae+592%
Bell's VireoVireonidae+725%
Marsh WrenTroglodytidae+811%
Common YellowthroatParulidae+922%

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