BirdAnalyst
BBS Route · Wisconsin · BCR 23

Hatfield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 27 survey years, no longer active.

120Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–1998Span
4Observers

Bird Species Found on Wisconsin Hatfield

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Hatfield 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
OvenbirdParulidae631998+63%1972
American CrowCorvidae401998+91%1972
American RobinTurdidae401998+25%1972
Indigo BuntingCardinalidae381998-42%1972
Blue JayCorvidae371998+0%1972
Eastern TowheePasserellidae351998-14%1972
Common YellowthroatParulidae321998+6%1972
Chipping SparrowPasserellidae311998-7%1972
Red-eyed VireoVireonidae281998+88%1972
Great Blue HeronArdeidae21199816×1973
Red-winged BlackbirdIcteridae211998-59%1972
Pine WarblerParulidae171998+231%1972
Cedar WaxwingBombycillidae161998+190%1972
Eastern PhoebeTyrannidae151998+200%1972
Black-capped ChickadeeParidae151998+0%1972
Scarlet TanagerCardinalidae141998-15%1972
Field SparrowPasserellidae131998-21%1972
VeeryTurdidae131998+65%1972
MallardAnatidae121994+183%1978
Song SparrowPasserellidae121998-55%1972
American GoldfinchFringillidae111998+35%1972
Mourning DoveColumbidae101998-8%1972
Rose-breasted GrosbeakCardinalidae101998+39%1972
Eastern Wood-PeweeTyrannidae91998+62%1972
Tree SwallowHirundinidae91998+273%1972
American RedstartParulidae91998+233%1971
Gray CatbirdMimidae91998-5%1972
Hermit ThrushTurdidae91998+750%1978
Wood ThrushTurdidae81998+400%1976
Canada GooseAnatidae81996+67%1990
Brown-headed CowbirdIcteridae71998-66%1972
Eastern BluebirdTurdidae71998+40%1972
European StarlingSturnidae61996-47%1972
Barn SwallowHirundinidae61998+40%1972
Bank SwallowHirundinidae61998+167%1979
Black-and-white WarblerParulidae51998-29%1972
Brown ThrasherMimidae51998-39%1972
Northern House WrenTroglodytidae51998+7%1972
Cliff SwallowHirundinidae51995+400%1986
Great Crested FlycatcherTyrannidae41998+3%1972

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