BirdAnalyst
BBS Route · Wisconsin · BCR 23

N Andover Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 108 species recorded across 39 survey years, still active.

108Species 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 →
39Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2025Span
6Observers

Bird Species Found on Wisconsin N Andover

Top 40 of 108 species by most recent count. Each links to its species trend.

Species recorded on the N Andover 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 BlackbirdIcteridae3862025+3%1975
American RobinTurdidae1032025+188%1975
House SparrowPasseridae1022025-53%1975
European StarlingSturnidae882025+7%1975
Mourning DoveColumbidae562025+80%1975
Cliff SwallowHirundinidae562025+94%1975
Song SparrowPasserellidae482025+148%1975
Canada GooseAnatidae402025+136%2005
DickcisselCardinalidae362025+44%1975
Gray CatbirdMimidae342025+170%1975
Barn SwallowHirundinidae322025+57%1975
Rock PigeonColumbidae312025-11%1975
Northern House WrenTroglodytidae312025+18%1975
Northern CardinalCardinalidae302025+91%1975
Common GrackleIcteridae282025-71%1975
American GoldfinchFringillidae272025-24%1975
KilldeerCharadriidae262025+225%1975
Double-crested CormorantPhalacrocoracidae212006+540%1992
Brown-headed CowbirdIcteridae192025+0%1975
Common YellowthroatParulidae192025+116%1975
Red-bellied WoodpeckerPicidae172025+308%1975
Eastern MeadowlarkIcteridae172025-14%1975
Horned LarkAlaudidae152025-33%1975
Baltimore OrioleIcteridae142025+4%1979
Rose-breasted GrosbeakCardinalidae132025+50%1979
Indigo BuntingCardinalidae122025+52%1975
Blue JayCorvidae102025-48%1975
American CrowCorvidae102025-55%1975
Sedge WrenTroglodytidae101996+400%1971
Eastern Wood-PeweeTyrannidae82025+24%1975
Warbling VireoVireonidae82025+54%1979
Eurasian Collared-DoveColumbidae72025+180%2022
Eastern PhoebeTyrannidae62025+38%1975
Chipping SparrowPasserellidae52025-31%1975
Brown ThrasherMimidae52025-44%1975
American RedstartParulidae52025+83%1979
House FinchFringillidae52023+17%1997
Vesper SparrowPasserellidae42021-86%1975
Field SparrowPasserellidae42025-69%1975
White-breasted NuthatchSittidae42025-22%1975

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