BirdAnalyst
Species · Maryland · BBS 2025 Release · 1966–2024

Bald Eagle Population Trend in Maryland

All statesGeneralists

Bald Eagle in Maryland has surged: up 60× on the route-weighted index since 1968.

60×Since 1968
49Routes In State
53Years

Notable Bald Eagle Trends in Maryland

long arc increasecomputed index

Bald Eagle has surged in Maryland: up 60× on the route-weighted index since 1968.

Bald Eagle Population Forecast in Maryland

If the recent trend holds, Bald Eagle in Maryland is projected to fall about 32% by 2029 — from 2.1 in 2024 to a central estimate of 1.4 (95% range 0.81–2.1). A 5-year backtest shows a typical error of ±41.7%, with 20% of held-out values landing inside the 95% band.

-32%Change by 2029
1.4Projected 2029 index
0.81–2.195% range
±41.7%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
20251.30.701.9
20261.30.732.0
20271.40.762.0
20281.40.782.0
20291.40.812.1

Bald Eagle Survey Routes in Maryland

Routes recording Bald Eagle in Maryland.
Cokesbury1820241990
Harmony1720171967
Madison1720241974
Melitota1620241983
Honga1220241966
Indiantown520141999
Emmitsburg420242014
Vienna420241989
St. George'S Island420172015
Williamsport320242019
Tall Timbers320131987
Millington320241988
Pomfret220241993
Matthews220242007
Mardela220192007
Ijamsville220232005
Vindex120162016
Grove Neck119961994
Wolfsville120232015
Olney120222019
Warfieldsbrg120182013
Bachman Mill120242024
Fowblesburg119841984
Eklo120172017
Walnut120242007

Bald Eagle Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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