BirdAnalyst
BBS Route · Wisconsin · BCR 23

Omro 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 23 survey years, still active.

114Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2002–2025Span
3Observers

Bird Species Found on Wisconsin Omro 2

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Omro 2 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
American RobinTurdidae1102025-27%2004
Canada GooseAnatidae1042025-38%2004
Red-winged BlackbirdIcteridae932025-63%2004
Rock PigeonColumbidae702025-4%2004
Ring-billed GullLaridae632025-39%2004
European StarlingSturnidae492025-51%2004
Mourning DoveColumbidae482025-24%2004
Barn SwallowHirundinidae432025-55%2004
Song SparrowPasserellidae372025-38%2004
Common YellowthroatParulidae322025-21%2004
Cliff SwallowHirundinidae302025+1%2004
American CrowCorvidae282025-46%2004
Yellow WarblerParulidae252025-33%2004
Northern House WrenTroglodytidae242025+24%2004
Chipping SparrowPasserellidae222025+48%2004
House SparrowPasseridae222025-56%2004
Blue JayCorvidae162025+133%2004
Swamp SparrowPasserellidae162025-52%2004
Wild TurkeyPhasianidae15202511×2009
American GoldfinchFringillidae142025-79%2004
MallardAnatidae132024-64%2004
Sandhill CraneGruidae132025-71%2004
Common GrackleIcteridae132025-84%2004
Northern CardinalCardinalidae132025+16%2004
Brown-headed CowbirdIcteridae122025-44%2004
Tree SwallowHirundinidae122025-85%2004
Sedge WrenTroglodytidae112024-79%2004
OspreyPandionidae82025+340%2004
Gray CatbirdMimidae82025+0%2004
Black-capped ChickadeeParidae82025+300%2004
Great Crested FlycatcherTyrannidae72025+0%2004
Warbling VireoVireonidae72025-13%2004
Red-bellied WoodpeckerPicidae72025+350%2005
Marsh WrenTroglodytidae72025+50%2006
Chimney SwiftApodidae62025-63%2004
Indigo BuntingCardinalidae62025-11%2004
American CootRallidae42002n/an/a
Downy WoodpeckerPicidae42025+9%2004
BobolinkIcteridae42025-91%2004
House FinchFringillidae42025-55%2004

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