BirdAnalyst
BBS Route · North Dakota · BCR 11

Rolla Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 123 species recorded across 47 survey years, still active.

123Species 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
6Observers

Bird Species Found on North Dakota Rolla

Top 40 of 123 species by most recent count. Each links to its species trend.

Species recorded on the Rolla 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 BlackbirdIcteridae1852024-22%1972
Common GrackleIcteridae922024+347%1972
Cliff SwallowHirundinidae802024+292%1975
MallardAnatidae402024+144%1972
Mourning DoveColumbidae402024-2%1972
Black TernLaridae372024-49%1972
Brown-headed CowbirdIcteridae342024+108%1972
Yellow-headed BlackbirdIcteridae292024-76%1972
American RobinTurdidae222024+150%1972
GadwallAnatidae212024+27%1976
Canada GooseAnatidae212024+994%2004
Bank SwallowHirundinidae202007+400%1975
Western MeadowlarkIcteridae192024-80%1972
Song SparrowPasserellidae182024+124%1973
Barn SwallowHirundinidae182024-54%1972
Common YellowthroatParulidae162024+76%1973
House SparrowPasseridae152024-69%1972
American GoldfinchFringillidae142024+59%1972
Wilson's SnipeScolopacidae132024+68%1976
Blue-winged TealAnatidae122024-57%1972
Sandhill CraneGruidae112003n/an/a
Northern ShovelerAnatidae102024+32%1972
Rock PigeonColumbidae102024+55%1973
Northern Rough-winged SwallowHirundinidae101995-40%1980
Yellow WarblerParulidae92024+275%1976
Horned LarkAlaudidae82024-81%1972
BobolinkIcteridae82024+14%1972
Wood DuckAnatidae82024+400%2018
Vesper SparrowPasserellidae72024+36%1975
Sedge WrenTroglodytidae72022+7%1972
Ring-billed GullLaridae72024+440%1981
CanvasbackAnatidae62023+250%1977
Eastern KingbirdTyrannidae62024-39%1972
Tree SwallowHirundinidae62024+50%1973
RedheadAnatidae42024+8%1979
American CootRallidae42024-88%1972
Savannah SparrowPasserellidae42024-67%1972
Northern House WrenTroglodytidae42023-40%1972
Marsh WrenTroglodytidae42024+350%1972
Upland SandpiperScolopacidae32024+18%1972

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