BirdAnalyst
BBS Route · North Dakota · BCR 11

Cooperstown Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 143 species recorded across 47 survey years, still active.

143Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2024Span
4Observers

Bird Species Found on North Dakota Cooperstown

Top 40 of 143 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
Red-winged BlackbirdIcteridae3952024+43%1971
Cliff SwallowHirundinidae280202419×1976
Canada GooseAnatidae207202446×1998
Common GrackleIcteridae1272024+348%1971
Mourning DoveColumbidae1142024+176%1971
Western MeadowlarkIcteridae702024-52%1971
MallardAnatidae682024+156%1971
Yellow-headed BlackbirdIcteridae652024-60%1971
Brown-headed CowbirdIcteridae632024+381%1971
Horned LarkAlaudidae452024+62%1971
Common YellowthroatParulidae422024+109%1971
Eastern KingbirdTyrannidae342024+105%1971
Vesper SparrowPasserellidae342024+226%1971
Clay-colored SparrowPasserellidae342024+77%1971
Black TernLaridae312024+2%1971
Wilson's SnipeScolopacidae31202430×1992
Yellow WarblerParulidae292024+700%1971
Northern House WrenTroglodytidae262024+85%1971
KilldeerCharadriidae222024+92%1971
Song SparrowPasserellidae222024+108%1971
Warbling VireoVireonidae222024+580%1972
BobolinkIcteridae212024+20%1971
American RobinTurdidae212024+136%1971
Orchard OrioleIcteridae202024+422%1976
Marsh WrenTroglodytidae192024+44%1971
GadwallAnatidae172024+100%1971
American GoldfinchFringillidae162024+656%1971
Blue-winged TealAnatidae152024-16%1971
Least FlycatcherTyrannidae142024+686%1971
Savannah SparrowPasserellidae142024-4%1971
Eastern Wood-PeweeTyrannidae132024+180%1973
Wood DuckAnatidae122023+325%1975
American BitternArdeidae112024+164%1971
Rose-breasted GrosbeakCardinalidae112024+58%1971
House SparrowPasseridae112024-44%1971
Bank SwallowHirundinidae102024+492%1971
Baird's SparrowPasserellidae101989n/an/a
Rock PigeonColumbidae92024+200%1972
European StarlingSturnidae92024+11%1972
Chipping SparrowPasserellidae92024+533%1977

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.