BirdAnalyst
Species · BCR 30 · BBS 2025 Release · 1966–2024

Acadian Flycatcher In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastAerial insectivores

Acadian Flycatcher in New England / Mid-Atlantic Coast has surged: up 146% on the route-weighted index since 1968.

+146%Since 1968
108Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Acadian Flycatcher has surged in New England / Mid-Atlantic Coast: up 146% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Acadian Flycatcher in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2029, near 4.6 (95% range 3.7–5.5). A 5-year backtest shows a typical error of ±11.5%, with 100% of held-out values landing inside the 95% band.

-8%Change by 2029
4.6Projected 2029 index
3.7–5.595% range
±11.5%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
20254.43.55.3
20264.43.65.3
20274.53.65.4
20284.63.75.4
20294.63.75.5

Routes In New England / Mid-Atlantic Coast

Routes recording Acadian Flycatcher in New England / Mid-Atlantic Coast.
Island CreekMARYLAND672024
PomonkeyMARYLAND552024
BrandonVIRGINIA282024
HughesvilleMARYLAND242024
WalkersVIRGINIA222023
DavidsnvilleMARYLAND192024
Port RoyalVIRGINIA182019
La PlataMARYLAND172009
White StoneVIRGINIA162024
TruhartVIRGINIA162024
PomfretMARYLAND152024
MillingtonMARYLAND152024
Forest GroveMARYLAND142023
Pr FrederickMARYLAND132024
Pt RepublicMARYLAND121989
GloucesterVIRGINIA122024
Milton 2DELAWARE112017
Furnace TownMARYLAND112024
Tall TimbersMARYLAND102014
NottinghamMARYLAND102024
St. George'S IslandMARYLAND92017
MillsboroDELAWARE72024
PepperboxDELAWARE72016
CheltenhamMARYLAND72004
Broomes IslMARYLAND71996

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