BirdAnalyst
BBS Route · Wisconsin · BCR 12

Washington I Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 153 species recorded across 52 survey years, still active.

153Species 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 →
1967–2025Span
5Observers

Bird Species Found on Wisconsin Washington I

Top 40 of 153 species by most recent count. Each links to its species trend.

Species recorded on the Washington I 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-eyed VireoVireonidae862025+334%1969
American CrowCorvidae592025+58%1969
American RobinTurdidae542025-5%1969
American RedstartParulidae532025+170%1969
Black-throated Green WarblerParulidae412025+482%1969
Cedar WaxwingBombycillidae392025-67%1969
Blue JayCorvidae382025+50%1969
OvenbirdParulidae252025-18%1969
Northern House WrenTroglodytidae252025+200%1969
Black-capped ChickadeeParidae232025+237%1969
Northern CardinalCardinalidae232025+833%1970
Herring GullLaridae222025-96%1969
Mourning DoveColumbidae212025+21%1969
Indigo BuntingCardinalidae182025+14%1969
Great Crested FlycatcherTyrannidae172025+80%1969
Chipping SparrowPasserellidae162025+110%1969
Ring-billed GullLaridae142025-90%1969
Common TernLaridae132013-73%1969
Common YellowthroatParulidae102025+40%1969
Eastern Wood-PeweeTyrannidae92025-33%1969
Purple FinchFringillidae92025+100%1969
American GoldfinchFringillidae92025-9%1969
Rock PigeonColumbidae82000+44%1973
Red CrossbillFringillidae72024+17%1967
Tree SwallowHirundinidae72025-93%1969
MallardAnatidae62025-74%1969
Red-winged BlackbirdIcteridae62025-91%1969
Rose-breasted GrosbeakCardinalidae62024-29%1969
Black-and-white WarblerParulidae52025-50%1969
Winter WrenTroglodytidae52025-44%1969
Ring-necked PheasantPhasianidae42025+200%1969
Song SparrowPasserellidae42025-80%1969
Chestnut-sided WarblerParulidae42025-57%1969
Gray CatbirdMimidae42025-11%1969
House FinchFringillidae42018-50%1995
Sandhill CraneGruidae42025+167%1999
White-winged CrossbillFringillidae41996n/an/a
Wild TurkeyPhasianidae42025-50%2010
KilldeerCharadriidae32025-79%1969
Hairy WoodpeckerPicidae32025+160%1969

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