BirdAnalyst
BBS Route · Wisconsin · BCR 23

Meridean Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 24 survey years, still active.

114Species 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 →
24Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1998–2024Span
2Observers

Bird Species Found on Wisconsin Meridean

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Meridean 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 RobinTurdidae612024-46%2000
American CrowCorvidae602024-36%2000
Red-winged BlackbirdIcteridae392024-56%2000
Indigo BuntingCardinalidae312024+12%2000
Mourning DoveColumbidae282024-48%2000
Common GrackleIcteridae242024-27%2001
American GoldfinchFringillidae222024-35%2000
Northern House WrenTroglodytidae222024-4%2000
Blue JayCorvidae192024-26%2000
Barn SwallowHirundinidae192024-37%2000
Song SparrowPasserellidae182024-79%2000
Northern CardinalCardinalidae182024-24%2000
Gray CatbirdMimidae172024-23%2000
Red-bellied WoodpeckerPicidae142024+33%2000
Chipping SparrowPasserellidae142024-65%2000
Common YellowthroatParulidae132024-66%2000
White-breasted NuthatchSittidae132024+0%2000
Eastern Wood-PeweeTyrannidae92024+12%2000
Brown-headed CowbirdIcteridae92024-19%2000
Vesper SparrowPasserellidae82024-82%2000
Eastern TowheePasserellidae82024+125%2002
Eastern BluebirdTurdidae82024-64%2000
KilldeerCharadriidae72024-22%2000
Downy WoodpeckerPicidae72024-35%2001
Hairy WoodpeckerPicidae62024+0%2001
European StarlingSturnidae62024-69%2000
Field SparrowPasserellidae62024-28%2000
Rose-breasted GrosbeakCardinalidae62024-17%2000
Black-capped ChickadeeParidae62024-54%2000
Chimney SwiftApodidae62022+0%2003
Northern BobwhiteOdontophoridae52012-58%2000
Baltimore OrioleIcteridae52024-56%2000
Cedar WaxwingBombycillidae52024-45%2000
Brown ThrasherMimidae52023-50%2000
Bank SwallowHirundinidae42019+40%2004
Warbling VireoVireonidae42024-20%2000
Brewer's BlackbirdIcteridae42019-33%2006
Eastern KingbirdTyrannidae32024-57%2000
Grasshopper SparrowPasserellidae32024-50%2002
Clay-colored SparrowPasserellidae32024-60%2000

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