BirdAnalyst
BBS Route · Wisconsin · BCR 12

Gilman Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 140 species recorded across 58 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 →
58Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
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 BlackbirdIcteridae1652025-25%1968
American RobinTurdidae742025+92%1968
Common YellowthroatParulidae632025+90%1968
American CrowCorvidae612025+42%1968
Song SparrowPasserellidae562025+44%1968
Yellow WarblerParulidae472025+213%1968
Sedge WrenTroglodytidae382025+87%1968
VeeryTurdidae312025+89%1968
Gray CatbirdMimidae242025+129%1968
Chipping SparrowPasserellidae192025+625%1968
Northern House WrenTroglodytidae172025+96%1968
Mourning DoveColumbidae162025+488%1969
Red-eyed VireoVireonidae152025+850%1968
Indigo BuntingCardinalidae142025+350%1968
American RedstartParulidae14202511×1970
Blue JayCorvidae132025+350%1968
Canada GooseAnatidae132024+820%1994
KilldeerCharadriidae122025+33%1968
Least FlycatcherTyrannidae122025+100%1968
Chestnut-sided WarblerParulidae122025+475%1970
European StarlingSturnidae112025+22%1969
Tree SwallowHirundinidae112025-26%1968
Baltimore OrioleIcteridae102025+100%1968
Rose-breasted GrosbeakCardinalidae102025+258%1968
OvenbirdParulidae102025+583%1968
American GoldfinchFringillidae92025+0%1968
Chimney SwiftApodidae82025+82%1971
House SparrowPasseridae82025-52%1968
Brown-headed CowbirdIcteridae72025-44%1968
Eastern MeadowlarkIcteridae72025-84%1968
Savannah SparrowPasserellidae72025-79%1968
Swamp SparrowPasserellidae72025+286%1970
Clay-colored SparrowPasserellidae62025-20%1970
Golden-winged WarblerParulidae62025+17%1970
White-breasted NuthatchSittidae62025+267%1969
Ring-necked DuckAnatidae62024+133%2015
Wilson's SnipeScolopacidae52025-53%1969
Rock PigeonColumbidae52023+750%1977
Black-billed CuckooCuculidae52025+54%1969
Eastern KingbirdTyrannidae52025+33%1968

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