BirdAnalyst
BBS Route · Minnesota · BCR 11

Courtland Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 129 species recorded across 36 survey years, still active.

129Species 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1978–2024Span
3Observers

Bird Species Found on Minnesota Courtland

Top 40 of 129 species by most recent count. Each links to its species trend.

Species recorded on the Courtland 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
Rock PigeonColumbidae842024-4%1980
Red-winged BlackbirdIcteridae772024-69%1980
American RobinTurdidae602024+14%1980
Common GrackleIcteridae532024-60%1980
Mourning DoveColumbidae522024-42%1980
European StarlingSturnidae422024-32%1980
Bank SwallowHirundinidae392024+24%1981
MallardAnatidae352024+73%1980
Barn SwallowHirundinidae332024-72%1980
Canada GooseAnatidae262024+142%1984
House SparrowPasseridae242024-81%1980
Brown-headed CowbirdIcteridae232024-63%1980
American CrowCorvidae202024-46%1980
KilldeerCharadriidae172024+13%1980
Northern CardinalCardinalidae142024+350%1983
Ring-necked PheasantPhasianidae132024-4%1980
Northern House WrenTroglodytidae132024-64%1980
Chimney SwiftApodidae122024+47%1980
Gray CatbirdMimidae122024+314%1980
CanvasbackAnatidae121991n/an/a
House FinchFringillidae112024+10%1999
Brewer's BlackbirdIcteridae102024+78%1983
Chipping SparrowPasserellidae102024-53%1980
Yellow-headed BlackbirdIcteridae82024-85%1980
DickcisselCardinalidae82024-61%1980
Common YellowthroatParulidae82024-73%1980
American GoldfinchFringillidae72024+28%1980
Red-bellied WoodpeckerPicidae72024+250%1986
Pied-billed GrebePodicipedidae52024-47%1980
Baltimore OrioleIcteridae52024-61%1980
Song SparrowPasserellidae52024-55%1980
Ring-necked DuckAnatidae51991n/an/a
Franklin's GullLaridae41978n/an/a
Cliff SwallowHirundinidae42024-32%1982
Brown ThrasherMimidae42024-7%1980
Eared GrebePodicipedidae42005n/an/a
Savannah SparrowPasserellidae32019-76%1980
Warbling VireoVireonidae32021+29%1980
Orchard OrioleIcteridae32009+0%1997
Common TernLaridae31991n/an/a

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