BirdAnalyst
BBS Route · North Dakota · BCR 11

Cooperstown Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 144 species recorded across 48 survey years, still active.

144Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
48Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2025Span
4Observers

Bird Species Found on North Dakota Cooperstown

Top 40 of 144 species by most recent count. Each links to its species trend.

Species recorded on the Cooperstown route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Canada GooseAnatidae617202530×1998
Red-winged BlackbirdIcteridae3132025+31%1971
Cliff SwallowHirundinidae153202514×1976
Mourning DoveColumbidae1062025+172%1971
Yellow-headed BlackbirdIcteridae972025-53%1971
Brown-headed CowbirdIcteridae862025+267%1971
Common GrackleIcteridae732025+264%1971
Western MeadowlarkIcteridae612025-49%1971
Common YellowthroatParulidae432025+107%1971
MallardAnatidae412025+124%1971
Vesper SparrowPasserellidae392025+282%1971
American RobinTurdidae392025+196%1971
Horned LarkAlaudidae382025+48%1971
Eastern KingbirdTyrannidae342025+120%1971
Marsh WrenTroglodytidae312025+74%1971
Yellow WarblerParulidae302025+683%1971
Clay-colored SparrowPasserellidae272025+54%1971
Bank SwallowHirundinidae262025+275%1971
Song SparrowPasserellidae252025+90%1971
Northern House WrenTroglodytidae252025+69%1971
BobolinkIcteridae232025+7%1971
Upland SandpiperScolopacidae232025+300%1975
Wilson's SnipeScolopacidae23202527×1992
Least FlycatcherTyrannidae222025+600%1971
American GoldfinchFringillidae212025+533%1971
KilldeerCharadriidae202025+69%1971
Cedar WaxwingBombycillidae202025+400%1972
European StarlingSturnidae182025+61%1972
Orchard OrioleIcteridae182025+444%1976
Savannah SparrowPasserellidae162025-14%1971
Ring-billed GullLaridae162025-32%2000
American White PelicanPelecanidae132025-65%1990
Black TernLaridae122025-40%1971
Barn SwallowHirundinidae122025+19%1971
Gray CatbirdMimidae122025+122%1972
American BitternArdeidae102025+164%1971
Rose-breasted GrosbeakCardinalidae102025+74%1971
Red-eyed VireoVireonidae102025+114%1971
Warbling VireoVireonidae102025+450%1972
Baird's SparrowPasserellidae101989n/an/a

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.