BirdAnalyst
BBS Route · Wisconsin · BCR 23

Stratford Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 112 species recorded across 56 survey years, still active.

112Species 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 →
56Years 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
6Observers

Bird Species Found on Wisconsin Stratford

Top 40 of 112 species by most recent count. Each links to its species trend.

Species recorded on the Stratford 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 BlackbirdIcteridae2102025+133%1968
European StarlingSturnidae742025+437%1968
House SparrowPasseridae442025+9%1968
Cliff SwallowHirundinidae412025+90%1968
American RobinTurdidae392025+247%1968
Rock PigeonColumbidae362025+175%1968
Common YellowthroatParulidae33202515×1968
Mourning DoveColumbidae302025+519%1968
Song SparrowPasserellidae302025+239%1968
Barn SwallowHirundinidae292025+109%1968
KilldeerCharadriidae282025+160%1968
Common GrackleIcteridae272025+233%1968
American CrowCorvidae202025-18%1968
Northern House WrenTroglodytidae202025+433%1968
Chipping SparrowPasserellidae192025+620%1969
American GoldfinchFringillidae172025+440%1969
Savannah SparrowPasserellidae162025-81%1968
BobolinkIcteridae132025-59%1968
Yellow WarblerParulidae122025+483%1971
Eastern MeadowlarkIcteridae122025+65%1980
Northern CardinalCardinalidae122025+420%1986
Rose-breasted GrosbeakCardinalidae112025+367%1970
Red-eyed VireoVireonidae102025+400%1976
Horned LarkAlaudidae92025+120%1970
Blue JayCorvidae92025+767%1968
Brewer's BlackbirdIcteridae92013-74%1970
Brown-headed CowbirdIcteridae82025+3%1969
Warbling VireoVireonidae82025+417%1968
Brown ThrasherMimidae62025-10%1968
MallardAnatidae62025-37%1977
Eastern Wood-PeweeTyrannidae62025+667%1970
American RedstartParulidae62025+225%1988
Wild TurkeyPhasianidae62023+0%2003
Baltimore OrioleIcteridae52025+550%1968
Tree SwallowHirundinidae52025-60%1968
Gray CatbirdMimidae52025+333%1968
Great Crested FlycatcherTyrannidae52025-14%1980
Least FlycatcherTyrannidae52025+150%1982
Canada GooseAnatidae52024-62%1999
Chimney SwiftApodidae42025+90%1977

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