BirdAnalyst
Species · New Jersey · BBS 2025 Release · 1966–2024

Least Flycatcher Population Trend in New Jersey

All statesAerial insectivores

Least Flycatcher in New Jersey has fallen sharply: down 52% on the route-weighted index since 1969.

-52%Since 1969
14Routes In State
53Years

Notable Least Flycatcher Trends in New Jersey

long arc declinecomputed index

Least Flycatcher has fallen sharply in New Jersey: down 52% on the route-weighted index since 1969.

Least Flycatcher Population Forecast in New Jersey

If the recent trend holds, Least Flycatcher in New Jersey is projected to stay roughly flat through 2029, near 0.10 (95% range 0.00–0.31). A 5-year backtest shows a typical error of ±62.6%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.10Projected 2029 index
0.00–0.3195% range
±62.6%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
20250.100.000.31
20260.100.000.31
20270.100.000.31
20280.100.000.31
20290.100.000.31

Least Flycatcher Survey Routes in New Jersey

Routes recording Least Flycatcher in New Jersey.
Albion219681968
Croton219701970
Pottersville219891977
Sandbrook120071980
Holmansville119751975
New Bedford120071972
Hope119941976
Midvale120141971
Kemah Lake119921967
Bloomsbury120212003
High Point120241977
Dover119811977
Ramseysburg119991996
Roosevelt119991999

Least Flycatcher Population Trend in Other States

alaskaarkansascaliforniacoloradoconnecticutgeorgiaidahoillinoisindianaiowakentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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