BirdAnalyst
BBS Route · Wisconsin · BCR 23

Beaver Dam Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 49 survey years, still active.

120Species 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 →
49Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2023Span
9Observers

Bird Species Found on Wisconsin Beaver Dam

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Beaver Dam 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 BlackbirdIcteridae1002023-78%1968
American CrowCorvidae462023+20%1968
American RobinTurdidae392023+40%1968
Barn SwallowHirundinidae352023+93%1968
House SparrowPasseridae342023-87%1968
Mourning DoveColumbidae302023+35%1968
European StarlingSturnidae302023-77%1968
Sandhill CraneGruidae19202319×1988
Northern CardinalCardinalidae17202316×1970
Common GrackleIcteridae152023-83%1968
Northern House WrenTroglodytidae142023+74%1968
Song SparrowPasserellidae122023-80%1968
Wild TurkeyPhasianidae122023+380%2012
Rock PigeonColumbidae92023-79%1968
Common YellowthroatParulidae92023-20%1968
Gray PartridgePhasianidae81993+300%1979
Horned LarkAlaudidae72023-64%1968
Tree SwallowHirundinidae72022+22%1968
Gray CatbirdMimidae72023+55%1968
KilldeerCharadriidae62023-41%1968
Great Crested FlycatcherTyrannidae62023+0%1968
Cedar WaxwingBombycillidae62023+23%1969
Blue JayCorvidae52023-39%1968
Chipping SparrowPasserellidae52023+220%1968
Red-bellied WoodpeckerPicidae52023+200%1985
Cliff SwallowHirundinidae52023+0%1976
Indigo BuntingCardinalidae42023-57%1968
Red-eyed VireoVireonidae42023+133%1971
Yellow-headed BlackbirdIcteridae42004-27%1971
House FinchFringillidae42023+150%1994
Turkey VultureCathartidae42023-91%2011
American White PelicanPelecanidae42023-56%2013
Chimney SwiftApodidae32023-55%1968
Warbling VireoVireonidae32023-25%1969
Spotted SandpiperScolopacidae32004+50%1980
Yellow-throated VireoVireonidae32023+50%1981
Yellow WarblerParulidae32023+75%1970
Least FlycatcherTyrannidae32004+150%1980
Great Horned OwlStrigidae32021+67%1997
Green-winged TealAnatidae32008+200%1993

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