BirdAnalyst
BBS Route · South Dakota · BCR 11

Roswell Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 110 species recorded across 41 survey years, still active.

110Species 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2014Span
5Observers

Bird Species Found on South Dakota Roswell

Top 40 of 110 species by most recent count. Each links to its species trend.

Species recorded on the Roswell 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 BlackbirdIcteridae3232014+23%1969
Common GrackleIcteridae3002014-30%1969
Franklin's GullLaridae1002007+55%1970
Brown-headed CowbirdIcteridae742014+64%1969
Ring-necked PheasantPhasianidae652014+51%1969
Mourning DoveColumbidae652014-15%1969
Cliff SwallowHirundinidae592012+144%1970
DickcisselCardinalidae542014+56%1969
Western MeadowlarkIcteridae412014-79%1969
MallardAnatidae322014+232%1971
Barn SwallowHirundinidae312014+158%1969
Sedge WrenTroglodytidae29201423×1983
KilldeerCharadriidae282014+65%1969
Eastern KingbirdTyrannidae262014-30%1969
Yellow-headed BlackbirdIcteridae262014+21%1969
American RobinTurdidae232014-25%1969
Common YellowthroatParulidae192014-55%1969
BobolinkIcteridae172014+925%1969
Pied-billed GrebePodicipedidae152012+122%1973
Blue-winged TealAnatidae152014+28%1970
Upland SandpiperScolopacidae132014+500%1969
Double-crested CormorantPhalacrocoracidae112014+600%1989
European StarlingSturnidae102014-62%1970
Vesper SparrowPasserellidae92010+400%1970
Bank SwallowHirundinidae9201413×1971
American White PelicanPelecanidae82014+55%1998
Blue JayCorvidae62011-33%1970
Tree SwallowHirundinidae62014+62%1993
Northern House WrenTroglodytidae62014+40%1971
Warbling VireoVireonidae61995+100%1973
Canada GooseAnatidae62014+324%1993
Ring-billed GullLaridae62009+500%2007
American CootRallidae52014+25%1970
Grasshopper SparrowPasserellidae52014+400%1969
Savannah SparrowPasserellidae5201211×1972
Wilson's PhalaropeScolopacidae52006+200%1971
Western KingbirdTyrannidae42014-77%1969
American GoldfinchFringillidae42014+9%1969
Song SparrowPasserellidae42014+114%1969
Great Blue HeronArdeidae42014+75%1990

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