BirdAnalyst
BBS Route · Minnesota · BCR 23

Knapp Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 127 species recorded across 53 survey years, still active.

127Species 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 →
53Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2025Span
8Observers

Bird Species Found on Minnesota Knapp

Top 40 of 127 species by most recent count. Each links to its species trend.

Species recorded on the Knapp 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 BlackbirdIcteridae802025+8%1969
American RobinTurdidae482025+29%1969
Common YellowthroatParulidae462025+45%1969
Chipping SparrowPasserellidae422025+823%1969
MallardAnatidae412024+125%1969
American GoldfinchFringillidae412025+187%1969
American CrowCorvidae392025+341%1969
Song SparrowPasserellidae392025+81%1969
Northern House WrenTroglodytidae382025+150%1969
Blue JayCorvidae312025+392%1969
Brown-headed CowbirdIcteridae272025+181%1969
Mourning DoveColumbidae262025-24%1969
Tree SwallowHirundinidae23202513×1973
Cedar WaxwingBombycillidae232025+714%1983
Indigo BuntingCardinalidae212025+486%1969
Black-capped ChickadeeParidae212025+917%1974
KilldeerCharadriidae192025-39%1969
Northern CardinalCardinalidae18202515×1975
Gray CatbirdMimidae182025+227%1969
Cliff SwallowHirundinidae182025+200%1993
Yellow WarblerParulidae152025+336%1970
Barn SwallowHirundinidae142025+19%1969
American White PelicanPelecanidae132025-33%1994
Ring-necked DuckAnatidae122007+214%1985
Eastern Wood-PeweeTyrannidae112025+800%1979
White-breasted NuthatchSittidae112025+575%1977
House SparrowPasseridae102025-71%1969
Ring-necked PheasantPhasianidae92025+66%1969
Great Crested FlycatcherTyrannidae92025+108%1969
Sandhill CraneGruidae92025+64%2016
Horned LarkAlaudidae82025+26%1969
Baltimore OrioleIcteridae82025+73%1969
Common GrackleIcteridae82025-78%1969
Swamp SparrowPasserellidae72025+177%1969
Bank SwallowHirundinidae72019+18%1974
Canada GooseAnatidae72025+417%1984
Rock PigeonColumbidae62024-32%1970
European StarlingSturnidae62025-78%1969
Wild TurkeyPhasianidae62024-58%2010
Brewer's BlackbirdIcteridae52002+43%1970

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