BirdAnalyst
BBS Route · Wisconsin · BCR 23

Trempealeau Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 118 species recorded across 53 survey years, still active.

118Species 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 →
53Years 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
5Observers

Bird Species Found on Wisconsin Trempealeau

Top 40 of 118 species by most recent count. Each links to its species trend.

Species recorded on the Trempealeau 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 BlackbirdIcteridae1902025+98%1970
American RobinTurdidae1582025+356%1970
Common GrackleIcteridae752025-35%1970
European StarlingSturnidae702025-33%1970
House SparrowPasseridae602025-51%1970
Barn SwallowHirundinidae542025+289%1970
American CrowCorvidae492025+67%1970
Mourning DoveColumbidae482025+217%1970
Song SparrowPasserellidae482025+151%1970
Northern CardinalCardinalidae402025+530%1970
Cliff SwallowHirundinidae37202515×1978
American GoldfinchFringillidae362025+253%1970
Common YellowthroatParulidae312025+127%1970
Gray CatbirdMimidae272025+211%1970
Northern House WrenTroglodytidae272025+227%1970
Indigo BuntingCardinalidae212025+225%1970
Henslow's SparrowPasserellidae181984n/an/a
Rock PigeonColumbidae142025-62%1970
Warbling VireoVireonidae142025+327%1970
House FinchFringillidae122025+171%1995
KilldeerCharadriidae112025+71%1970
White-breasted NuthatchSittidae102025+109%1970
Eastern Wood-PeweeTyrannidae92025+367%1970
Blue JayCorvidae92025-39%1970
Brown-headed CowbirdIcteridae82025-37%1970
Savannah SparrowPasserellidae82025-58%1970
Yellow WarblerParulidae82025+200%1970
Canada GooseAnatidae82025+44%1997
Red-bellied WoodpeckerPicidae72025+343%1973
Baltimore OrioleIcteridae72025-23%1970
Chipping SparrowPasserellidae72025+160%1970
Rose-breasted GrosbeakCardinalidae72025+25%1970
Brown ThrasherMimidae72025-6%1970
Chimney SwiftApodidae62025-68%1970
DickcisselCardinalidae62025-54%1970
Northern Rough-winged SwallowHirundinidae62025-29%1970
Eastern BluebirdTurdidae62025+275%1970
Field SparrowPasserellidae52025-77%1970
Eastern KingbirdTyrannidae42024-30%1970
Horned LarkAlaudidae42025+11%1971

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