BirdAnalyst
BBS Route · Wisconsin · BCR 23

Weyerhauser Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 137 species recorded across 55 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 →
55Years 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
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
American RobinTurdidae842025+134%1968
Red-winged BlackbirdIcteridae802025-30%1968
Common GrackleIcteridae752025+161%1968
Mourning DoveColumbidae532025+141%1968
American CrowCorvidae472025-4%1968
Brown-headed CowbirdIcteridae302025+103%1968
Common YellowthroatParulidae282025+149%1968
Blue JayCorvidae212025+81%1968
Gray CatbirdMimidae212025+150%1968
Rose-breasted GrosbeakCardinalidae202025+323%1968
Song SparrowPasserellidae192025+27%1968
Ring-necked PheasantPhasianidae19202511×1977
Northern House WrenTroglodytidae182025+126%1969
European StarlingSturnidae162025-54%1968
Chipping SparrowPasserellidae152025+657%1968
Yellow WarblerParulidae152025+168%1969
Canada GooseAnatidae142025+271%1996
Cliff SwallowHirundinidae122025+15%1968
Chimney SwiftApodidae112025+64%1968
Indigo BuntingCardinalidae112025+227%1970
Baltimore OrioleIcteridae102025+13%1968
BobolinkIcteridae92025-68%1968
American GoldfinchFringillidae82025-17%1968
Bank SwallowHirundinidae82023-66%1968
Golden-winged WarblerParulidae82024+100%1996
Rock PigeonColumbidae82025-17%1978
Red-bellied WoodpeckerPicidae82025+250%2001
Clay-colored SparrowPasserellidae72024+171%1968
Northern CardinalCardinalidae72025+800%1972
Eastern KingbirdTyrannidae62025+27%1969
Cedar WaxwingBombycillidae62025+343%1968
VeeryTurdidae62025+22%1969
Great Crested FlycatcherTyrannidae62025+129%1969
Eastern Wood-PeweeTyrannidae62025+800%1969
Black-capped ChickadeeParidae62025+180%1971
Wild TurkeyPhasianidae62025+133%2002
Eastern BluebirdTurdidae52025+8%1968
MallardAnatidae52025-76%1969
Sandhill CraneGruidae52025+125%1994
Hooded MerganserAnatidae52025+67%2015

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