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

Northern Rough-winged Swallow In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionAerial insectivores

Northern Rough-winged Swallow in Prairie Hardwood Transition has increased: up 25% on the route-weighted index since 1968.

+25%Since 1968
154Routes In Region
58Years

Notable Signals

No notable trend signals for Northern Rough-winged Swallow in Prairie Hardwood Transition. See the full index history below.

Forecast

If the recent trend holds, Northern Rough-winged Swallow in Prairie Hardwood Transition is projected to rise about 173% by 2029 — from 0.78 in 2024 to a central estimate of 2.1 (95% range 0.79–3.5). A 5-year backtest shows a typical error of ±95.7%, with 80% of held-out values landing inside the 95% band.

+173%Change by 2029
2.1Projected 2029 index
0.79–3.595% range
±95.7%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
20252.10.803.5
20262.10.803.5
20272.10.793.5
20282.10.793.5
20292.10.793.5

Routes In Prairie Hardwood Transition

Routes recording Northern Rough-winged Swallow in Prairie Hardwood Transition.
EsdaileWISCONSIN222023
Hamburg 2MICHIGAN202023
ChatfieldMINNESOTA141999
CochraneWISCONSIN142022
GuilfordILLINOIS132023
GilmantonWISCONSIN132022
Whitewater 2MINNESOTA112019
ClintonvilleWISCONSIN92018
AnnatonWISCONSIN82024
HamtramckMICHIGAN71984
AdairMICHIGAN71995
MillvilleMINNESOTA72018
Sherburne NrMINNESOTA72024
Hazel GreenWISCONSIN72018
LagrangeINDIANA62024
PrattvilleMICHIGAN62018
DeckervilleMICHIGAN62016
HamburgMICHIGAN62001
VeronaWISCONSIN62023
Prairie Du ChienWISCONSIN62024
FowlervilleMICHIGAN52005
KendallWISCONSIN52022
PardeevilleWISCONSIN52021
Fall RiverWISCONSIN52024
HighlandWISCONSIN52021

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