Species · BCR 23 · BBS 2025 Release · 1966–2024

Ruby-throated Hummingbird In Prairie Hardwood Transition

Ruby-throated Hummingbird in Prairie Hardwood Transition has surged: up 197% on the route-weighted index since 1968.

+197%Since 1968
155Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Ruby-throated Hummingbird has surged in Prairie Hardwood Transition: up 197% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Ruby-throated Hummingbird in Prairie Hardwood Transition is projected to rise about 88% by 2029 — from 0.38 in 2024 to a central estimate of 0.72 (95% range 0.46–0.98). A 5-year backtest shows a typical error of ±81%, with 20% of held-out values landing inside the 95% band.

+88%Change by 2029
0.72Projected 2029 index
0.460.9895% range
±81%Backtest error
19662029
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
20250.680.420.94
20260.690.430.95
20270.700.440.96
20280.710.450.97
20290.720.460.98

Routes In Prairie Hardwood Transition

Routes recording Ruby-throated Hummingbird in Prairie Hardwood Transition.
MatherWISCONSIN62023
Caledonia 2MINNESOTA52021
AlmenaMICHIGAN42015
KnoxINDIANA32019
HowardsvilleMICHIGAN32023
Bell OakMICHIGAN32008
Belding 2MICHIGAN32023
Allegan WmaMICHIGAN32019
HolwayWISCONSIN31988
CadottWISCONSIN32024
Newburg CrnsWISCONSIN32018
Mukwonago 2WISCONSIN32024
South BendINDIANA21984
Columbia CtyINDIANA22022
PackertownINDIANA22004
ScottvilleMICHIGAN22019
BravoMICHIGAN22022
MontereyMICHIGAN22024
St CharlesMICHIGAN21990
No BradleyMICHIGAN22019
LapeerMICHIGAN22024
Hamburg 2MICHIGAN22023
Barry S.G.A. 2MICHIGAN22019
MillvilleMINNESOTA22019
N BaltimoreOHIO22016

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