BirdAnalyst
BBS Route · Wisconsin · BCR 23

Manitowoc Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 132 species recorded across 52 survey years, still active.

132Species 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 →
52Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2024Span
5Observers

Bird Species Found on Wisconsin Manitowoc

Top 40 of 132 species by most recent count. Each links to its species trend.

Species recorded on the Manitowoc 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
Herring GullLaridae184202477×1987
European StarlingSturnidae1802024+62%1968
Red-winged BlackbirdIcteridae1322024+15%1968
American RobinTurdidae892024+12%1968
Barn SwallowHirundinidae472024+87%1968
Mourning DoveColumbidae432024+400%1968
House SparrowPasseridae402024-32%1968
American GoldfinchFringillidae392024+77%1968
American CrowCorvidae332024-10%1968
Common GrackleIcteridae322024-47%1968
Rock PigeonColumbidae322024-25%1972
Song SparrowPasserellidae292024-30%1968
Northern House WrenTroglodytidae222024+45%1968
Chipping SparrowPasserellidae202024+115%1968
Northern CardinalCardinalidae202024+788%1972
House FinchFringillidae182024+69%1993
Cliff SwallowHirundinidae152024+125%1974
Chimney SwiftApodidae132023-50%1968
Sandhill CraneGruidae13202412×2001
Blue JayCorvidae122024+116%1968
KilldeerCharadriidae112024-49%1968
MallardAnatidae102024+42%1972
Common YellowthroatParulidae102024-18%1968
Purple MartinHirundinidae92024-21%1968
Yellow WarblerParulidae82023-13%1972
Brown-headed CowbirdIcteridae62024-49%1968
Indigo BuntingCardinalidae62024+121%1968
Tree SwallowHirundinidae62024-8%1968
BobolinkIcteridae52021-91%1968
Wild TurkeyPhasianidae52024+67%2003
Baltimore OrioleIcteridae42023-20%1972
Savannah SparrowPasserellidae42024-96%1968
Cedar WaxwingBombycillidae42024-11%1972
Red-eyed VireoVireonidae42024+440%1972
Red-tailed HawkAccipitridae42021+20%1978
Bank SwallowHirundinidae42019-17%1979
Marsh WrenTroglodytidae42005+300%1975
Clay-colored SparrowPasserellidae32021+133%1978
Hairy WoodpeckerPicidae32024+75%1985
Ring-billed GullLaridae32023+77%1992

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