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Species · Louisiana · BBS 2025 Release · 1966–2024

Baltimore Oriole Population Trend in Louisiana

All statesGeneralists

Baltimore Oriole in Louisiana has fallen sharply: down 66% on the route-weighted index since 1969.

-66%Since 1969
47Routes In State
57Years

Notable Baltimore Oriole Trends in Louisiana

long arc declinecomputed index

Baltimore Oriole has fallen sharply in Louisiana: down 66% on the route-weighted index since 1969.

Baltimore Oriole Population Forecast in Louisiana

If the recent trend holds, Baltimore Oriole in Louisiana is projected to fall about 99% by 2029 — from 0.85 in 2024 to a central estimate of 0.01 (95% range 0.00–0.69). A 5-year backtest shows a typical error of ±107.5%, with 80% of held-out values landing inside the 95% band.

-99%Change by 2029
0.01Projected 2029 index
0.00–0.6995% range
±107.5%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
20250.070.000.75
20260.060.000.73
20270.040.000.72
20280.030.000.70
20290.010.000.69

Baltimore Oriole Survey Routes in Louisiana

Routes recording Baltimore Oriole in Louisiana.
Shaw1720241967
River Road820241987
Mayflower720241967
Cypress419821967
Morgan City219771973
Creole219711970
Fort Jessup220222013
Fishville220021967
Fort Polk219751967
Clay220121968
Longstreet220111967
Floyd220191993
Marion219941994
Gonzales220112006
Frogmore220242007
Transylvania220181999
Baton Rouge220222007
Roseland119771970
Bickham120091984
Keystone119671967
Plettenberg120221968
Mamou119711967
Easton119881968
De Ridder120021970
Derry119891967

Baltimore Oriole Population Trend in Other States

alabamaarkansascaliforniacoloradoconnecticutdelawaregeorgiaillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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