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Species · North Dakota · BBS 2025 Release · 1966–2024

Franklin's Gull Population Trend in North Dakota

All statesWetland birds

Franklin's Gull in North Dakota has surged: up 452% on the route-weighted index since 1970.

+452%Since 1970
39Routes In State
56Years

Notable Franklin's Gull Trends in North Dakota

long arc increasecomputed index

Franklin's Gull has surged in North Dakota: up 452% on the route-weighted index since 1970.

Franklin's Gull Population Forecast in North Dakota

If the recent trend holds, Franklin's Gull in North Dakota is projected to fall about 66% by 2029 — from 41 in 2024 to a central estimate of 14 (95% range 0.00–29). A 5-year backtest shows a typical error of ±293.1%, with 80% of held-out values landing inside the 95% band.

-66%Change by 2029
14Projected 2029 index
0.00–2995% range
±293.1%Backtest error
19682029
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
2025130.0029
2026130.0029
2027130.0029
2028130.0029
2029140.0029

Franklin's Gull Survey Routes in North Dakota

Routes recording Franklin's Gull in North Dakota.
Wild Rose87220241997
Lakota9920031968
Powers Lake7820231994
Carpio7020231969
Denbigh6020241968
Horsehead Lk5520241983
Niles5320241989
Loraine2820181982
Lakota 22520152010
Edgeley2320241980
Sheyenne Lk2320221986
Webster2120241989
Parshall2119951982
Regan2019971997
Dunn Center2019681968
Douglas Crk1220231984
Montpelier1020241996
Lake George920221968
Dickinson920132013
Sydney619681968
Bowesmont519951995
Braddock520221990
Danzig420141983
Emerado420151982
Walcott320071972

Franklin's Gull Population Trend in Other States

californiaidahokansasminnesotamontananebraskaoregonsouth-dakotautahwyoming

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