BirdAnalyst
BBS Route · Wisconsin · BCR 23

Beloit Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 27 survey years, still active.

95Species 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 →
1998–2025Span
2Observers

Bird Species Found on Wisconsin Beloit

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Beloit 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 BlackbirdIcteridae2852025+138%2000
European StarlingSturnidae1582025+122%2000
American RobinTurdidae1442025+312%2000
House SparrowPasseridae63202511×2000
Northern CardinalCardinalidae602025+364%2000
Mourning DoveColumbidae482025+139%2000
Song SparrowPasserellidae472025+111%2000
American CrowCorvidae422025+107%2000
Barn SwallowHirundinidae392025+136%2000
Gray CatbirdMimidae372025+475%2000
Northern House WrenTroglodytidae332025+363%2000
Common YellowthroatParulidae252025+79%2000
KilldeerCharadriidae242025+200%2000
Brown-headed CowbirdIcteridae222025+39%2000
American GoldfinchFringillidae222025+183%2000
Cliff SwallowHirundinidae192025+380%2013
Common GrackleIcteridae182025-15%2000
Sandhill CraneGruidae162025+330%2004
Blue JayCorvidae142025+64%2000
Rock PigeonColumbidae132025+280%2000
Wild TurkeyPhasianidae122025+275%2002
White-breasted NuthatchSittidae112025+375%2008
Baltimore OrioleIcteridae102025+275%2000
Chipping SparrowPasserellidae102025+192%2000
Indigo BuntingCardinalidae102025+69%2000
Warbling VireoVireonidae102025+338%2000
DickcisselCardinalidae92025+55%2003
Canada GooseAnatidae92024+190%2012
Bank SwallowHirundinidae92024+9%2013
Cedar WaxwingBombycillidae82025+107%2001
Red-bellied WoodpeckerPicidae82025+371%2002
Eastern Wood-PeweeTyrannidae72025+86%2001
MallardAnatidae72025+44%2003
Horned LarkAlaudidae62025+160%2000
Tree SwallowHirundinidae62025+233%2004
Blue-winged TealAnatidae62011n/an/a
Rose-breasted GrosbeakCardinalidae52025+140%2000
Eastern PhoebeTyrannidae52025+167%2001
Turkey VultureCathartidae52025+0%2013
Red-tailed HawkAccipitridae42025+100%2001

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