BirdAnalyst
BBS Route · Wisconsin · BCR 12

Bayfield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 153 species recorded across 57 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 →
57Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2024Span
2Observers

Bird Species Found on Wisconsin Bayfield

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

Species recorded on the Bayfield 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
OvenbirdParulidae662024+104%1969
Red-eyed VireoVireonidae622024+230%1969
Song SparrowPasserellidae462024+53%1969
Common YellowthroatParulidae442024+167%1969
American CrowCorvidae432024+98%1969
Red-winged BlackbirdIcteridae432024+235%1969
American RobinTurdidae432024+49%1969
Cedar WaxwingBombycillidae392024+179%1969
Indigo BuntingCardinalidae372024+265%1969
Savannah SparrowPasserellidae272024-24%1969
Blue JayCorvidae212024+73%1969
American GoldfinchFringillidae212024+26%1969
Chestnut-sided WarblerParulidae202024+111%1969
European StarlingSturnidae172024+160%1969
Tree SwallowHirundinidae152024-66%1969
Mourning WarblerParulidae152024+370%1969
American RedstartParulidae152024+206%1969
VeeryTurdidae142024-19%1969
Herring GullLaridae131999+260%1971
Chipping SparrowPasserellidae122024+500%1969
BobolinkIcteridae112024-51%1969
White-throated SparrowPasserellidae112024+130%1969
Black-capped ChickadeeParidae112024+583%1969
Mourning DoveColumbidae102024+700%1971
Wood ThrushTurdidae102024+0%1974
Black-and-white WarblerParulidae92024+750%1969
Yellow-bellied SapsuckerPicidae92024+112%1970
Clay-colored SparrowPasserellidae82024+69%1969
Pine WarblerParulidae82024+660%1969
Northern House WrenTroglodytidae72024+35%1969
Red-breasted NuthatchSittidae72024+360%1969
Yellow-billed CuckooCuculidae72023+0%1979
Least FlycatcherTyrannidae62024-47%1969
Barn SwallowHirundinidae62024+16%1969
Rock PigeonColumbidae62024+400%1984
Rose-breasted GrosbeakCardinalidae52024-42%1969
Nashville WarblerParulidae52024+233%1970
Spotted SandpiperScolopacidae51987+400%1970
Alder FlycatcherTyrannidae52024+433%1978
Common GrackleIcteridae52024+64%1983

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