BirdAnalyst
Species · BCR 12 · BBS 2025 Release · 1966–2024

Common Nighthawk In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionAerial insectivores

Common Nighthawk in Boreal Hardwood Transition has fallen sharply: down 61% on the route-weighted index since 1969.

-61%Since 1969
71Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Common Nighthawk has fallen sharply in Boreal Hardwood Transition: down 61% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Common Nighthawk in Boreal Hardwood Transition is projected to fall about 100% by 2029 — from 0.08 in 2024 to a central estimate of 0.00 (95% range 0.00–0.24). A 5-year backtest shows a typical error of ±48.6%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–0.2495% range
±48.6%Backtest error
19672029
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
20250.020.000.27
20260.020.000.26
20270.010.000.25
20280.000.000.25
20290.000.000.24

Routes In Boreal Hardwood Transition

Routes recording Common Nighthawk in Boreal Hardwood Transition.
LudeMINNESOTA42000
NebishMINNESOTA42015
Nett LakeMINNESOTA42018
CunardMICHIGAN32019
IsabellaMICHIGAN32000
RacoMICHIGAN32023
Red OakMICHIGAN32001
Betchler LksMICHIGAN32024
WaskishMINNESOTA31978
IronsMICHIGAN21989
Brush CreekMICHIGAN22013
OberlinMICHIGAN21983
Mille LacsMINNESOTA22008
BenaMINNESOTA21967
ChaffeyWISCONSIN22016
ConoverWISCONSIN22023
OntonagonMICHIGAN12004
BerglandMICHIGAN11990
MareniscoMICHIGAN12005
HermanMICHIGAN11991
Gibbs CityMICHIGAN12000
IshpemingMICHIGAN12016
Brocky LakeMICHIGAN12012
WilsonMICHIGAN11999
ShingletonMICHIGAN11980

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