BirdAnalyst
BBS Route · Wisconsin · BCR 12

Gilman Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 140 species recorded across 57 survey years, still active.

140Species 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 →
1966–2024Span
3Observers

Bird Species Found on Wisconsin Gilman

Top 40 of 140 species by most recent count. Each links to its species trend.

Species recorded on the Gilman 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 BlackbirdIcteridae1172024-30%1968
Common YellowthroatParulidae632024+117%1968
Song SparrowPasserellidae582024+26%1968
American RobinTurdidae572024+126%1968
Yellow WarblerParulidae432024+145%1968
VeeryTurdidae422024+73%1968
American CrowCorvidae412024+21%1968
Sedge WrenTroglodytidae322024+65%1968
European StarlingSturnidae222024+13%1969
Red-eyed VireoVireonidae222024+950%1968
Rose-breasted GrosbeakCardinalidae212024+225%1968
Sandhill CraneGruidae202024+340%1981
Chipping SparrowPasserellidae192024+488%1968
Indigo BuntingCardinalidae172024+330%1968
Gray CatbirdMimidae172024+88%1968
Mourning DoveColumbidae152024+538%1969
Alder FlycatcherTyrannidae142024+820%1968
Swamp SparrowPasserellidae142024+286%1970
Chestnut-sided WarblerParulidae142024+413%1970
Northern House WrenTroglodytidae142024+58%1968
OvenbirdParulidae132024+517%1968
Canada GooseAnatidae132024+820%1994
Baltimore OrioleIcteridae122024+73%1968
KilldeerCharadriidae112024+5%1968
American RedstartParulidae11202414×1970
Common RavenCorvidae112024+180%1977
MallardAnatidae112024+146%1978
BobolinkIcteridae102024-68%1968
Wild TurkeyPhasianidae102024-28%2005
Eastern MeadowlarkIcteridae92024-89%1968
Northern Rough-winged SwallowHirundinidae92022+300%1979
Least FlycatcherTyrannidae82024+42%1968
American GoldfinchFringillidae82024+5%1968
Savannah SparrowPasserellidae82024-81%1968
Cedar WaxwingBombycillidae82024+116%1969
Black-billed CuckooCuculidae72023+31%1969
Barn SwallowHirundinidae72024-35%1968
Chimney SwiftApodidae62024+36%1971
Great Crested FlycatcherTyrannidae62024+157%1968
Black-capped ChickadeeParidae62024+280%1971

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