BirdAnalyst
BBS Route · Wisconsin · BCR 23

Weyerhauser Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 137 species recorded across 54 survey years, still active.

137Species 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 →
54Years 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
4Observers

Bird Species Found on Wisconsin Weyerhauser

Top 40 of 137 species by most recent count. Each links to its species trend.

Species recorded on the Weyerhauser 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 BlackbirdIcteridae842024-29%1968
Common GrackleIcteridae752024+134%1968
American RobinTurdidae532024+101%1968
Mourning DoveColumbidae452024+97%1968
American CrowCorvidae422024-14%1968
Brown-headed CowbirdIcteridae332024+67%1968
Common YellowthroatParulidae332024+135%1968
European StarlingSturnidae322024-44%1968
Blue JayCorvidae222024+56%1968
Chipping SparrowPasserellidae212024+714%1968
Song SparrowPasserellidae212024+55%1968
Rose-breasted GrosbeakCardinalidae192024+231%1968
Baltimore OrioleIcteridae172024+40%1968
American GoldfinchFringillidae172024-11%1968
Rock PigeonColumbidae172024-11%1978
Cedar WaxwingBombycillidae162024+314%1968
Cliff SwallowHirundinidae152024+22%1968
Canada GooseAnatidae142024+268%1996
Indigo BuntingCardinalidae122024+255%1970
Gray CatbirdMimidae122024+105%1968
Northern House WrenTroglodytidae122024+116%1969
Ring-necked PheasantPhasianidae122024+775%1977
Savannah SparrowPasserellidae112024-46%1968
Yellow WarblerParulidae112024+158%1969
House SparrowPasseridae112024-79%1968
BobolinkIcteridae102024-70%1968
Eastern Wood-PeweeTyrannidae102024+667%1969
Sandhill CraneGruidae102024+150%1994
Chimney SwiftApodidae92024+7%1968
Barn SwallowHirundinidae82024-52%1968
Bank SwallowHirundinidae82023-66%1968
Sedge WrenTroglodytidae82024+175%1968
Golden-winged WarblerParulidae82024+100%1996
Clay-colored SparrowPasserellidae72024+171%1968
Northern CardinalCardinalidae72024+867%1972
Red-eyed VireoVireonidae72024+600%1970
OvenbirdParulidae72024+271%1970
KilldeerCharadriidae52024+39%1968
Eastern PhoebeTyrannidae52024+57%1969
Horned LarkAlaudidae52024+250%1969

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