BirdAnalyst
BBS Route · Wisconsin · BCR 23

Unity Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 134 species recorded across 55 survey years, still active.

134Species 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 →
55Years 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
7Observers

Bird Species Found on Wisconsin Unity

Top 40 of 134 species by most recent count. Each links to its species trend.

Species recorded on the Unity 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 BlackbirdIcteridae2032025-55%1970
American RobinTurdidae642025+88%1970
Mourning DoveColumbidae522025+320%1970
American CrowCorvidae462025-46%1970
European StarlingSturnidae422025-68%1970
Common GrackleIcteridae322025-71%1970
Rock PigeonColumbidae262025+155%1974
House SparrowPasseridae232025-79%1970
Common YellowthroatParulidae202025-28%1970
Song SparrowPasserellidae162025-12%1970
Barn SwallowHirundinidae132025-57%1970
Yellow WarblerParulidae132025+256%1970
American GoldfinchFringillidae112025-35%1970
Ring-necked PheasantPhasianidae102025+675%1974
Sandhill CraneGruidae102025+725%1979
Chipping SparrowPasserellidae92025+286%1970
VeeryTurdidae82025-6%1970
Rose-breasted GrosbeakCardinalidae72025+120%1970
KilldeerCharadriidae62025-62%1970
DickcisselCardinalidae62023+244%1973
Red-eyed VireoVireonidae62025+214%1970
OvenbirdParulidae62025-53%1970
Sedge WrenTroglodytidae62025-15%1970
Swamp SparrowPasserellidae62025+325%1973
Northern CardinalCardinalidae62025+300%1988
House FinchFringillidae62025+180%1997
Eastern MeadowlarkIcteridae52025-78%1970
Indigo BuntingCardinalidae52025+24%1970
Bank SwallowHirundinidae52009+0%1971
Gray CatbirdMimidae52025+0%1970
Black-capped ChickadeeParidae52025+200%1970
Yellow-billed CuckooCuculidae52021+125%1983
Least FlycatcherTyrannidae42024+67%1970
Baltimore OrioleIcteridae42025+33%1970
Brewer's BlackbirdIcteridae42023-88%1970
Tree SwallowHirundinidae42025+100%1971
Cedar WaxwingBombycillidae42024+157%1972
Warbling VireoVireonidae42025-38%1970
Black-and-white WarblerParulidae42023+75%1972
Northern House WrenTroglodytidae42025+171%1970

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