BirdAnalyst
BBS Route · Wisconsin · BCR 23

Mukwonago 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 91 species recorded across 20 survey years, still active.

91Species 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 →
20Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2005–2025Span
2Observers

Bird Species Found on Wisconsin Mukwonago 2

Top 40 of 91 species by most recent count. Each links to its species trend.

Species recorded on the Mukwonago 2 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 BlackbirdIcteridae872025-1%2007
American RobinTurdidae652025+4%2007
European StarlingSturnidae522025-35%2007
Mourning DoveColumbidae502025+34%2007
American CrowCorvidae442025+3%2007
Barn SwallowHirundinidae312025-13%2007
Northern CardinalCardinalidae262025+25%2007
Northern House WrenTroglodytidae252025-19%2007
House FinchFringillidae242025+5%2007
Song SparrowPasserellidae242025-18%2007
Cedar WaxwingBombycillidae222025-40%2007
American GoldfinchFringillidae202025-31%2007
Blue JayCorvidae192025+59%2007
Brown-headed CowbirdIcteridae192025-39%2007
House SparrowPasseridae192025-56%2007
Chipping SparrowPasserellidae182025-59%2007
Sandhill CraneGruidae162025+179%2007
Red-bellied WoodpeckerPicidae15202513×2007
Indigo BuntingCardinalidae152025+43%2007
Rock PigeonColumbidae142025+3%2007
Chimney SwiftApodidae142025+210%2008
Turkey VultureCathartidae132025+933%2007
Gray CatbirdMimidae132025+18%2007
Black-capped ChickadeeParidae122025+16%2007
Common GrackleIcteridae112025-58%2007
Eastern Wood-PeweeTyrannidae102025+240%2008
Common YellowthroatParulidae102025-28%2007
Great Crested FlycatcherTyrannidae92025+115%2008
KilldeerCharadriidae82025+119%2007
Canada GooseAnatidae82024+40%2012
Cliff SwallowHirundinidae82025-60%2023
Baltimore OrioleIcteridae62025+100%2007
Rose-breasted GrosbeakCardinalidae62025-9%2007
Red-tailed HawkAccipitridae52025+160%2013
Red-eyed VireoVireonidae52025+33%2007
Warbling VireoVireonidae52025-36%2007
Yellow WarblerParulidae52025+61%2007
White-breasted NuthatchSittidae52025+300%2007
Yellow-billed CuckooCuculidae42023+300%2005
Field SparrowPasserellidae42025-30%2007

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