BirdAnalyst
BBS Route · Wisconsin · BCR 12

Irma Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 139 species recorded across 56 survey years, still active.

139Species 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 →
1967–2025Span
6Observers

Bird Species Found on Wisconsin Irma

Top 40 of 139 species by most recent count. Each links to its species trend.

Species recorded on the Irma 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-eyed VireoVireonidae542025+87%1969
Red CrossbillFringillidae402018+264%1980
American RobinTurdidae332025+28%1969
OvenbirdParulidae262025+100%1969
Indigo BuntingCardinalidae232025+10%1969
Common YellowthroatParulidae212025+4%1969
Song SparrowPasserellidae182025-61%1969
Chestnut-sided WarblerParulidae162025+4%1969
Rock PigeonColumbidae162023+338%1982
American CrowCorvidae142025-61%1969
Red-winged BlackbirdIcteridae142025-31%1969
Yellow WarblerParulidae132025+167%1969
Mourning DoveColumbidae122025+800%1972
Black-capped ChickadeeParidae122025+180%1969
Bank SwallowHirundinidae122000+80%1978
American GoldfinchFringillidae102025+29%1969
Gray CatbirdMimidae92025-5%1969
Blue JayCorvidae82025-48%1969
Least FlycatcherTyrannidae72025-35%1969
Chipping SparrowPasserellidae72025+21%1969
Wild TurkeyPhasianidae72025+633%2003
Eastern Wood-PeweeTyrannidae62025+24%1969
Common RavenCorvidae62025+67%1970
European StarlingSturnidae62024-78%1969
Brewer's BlackbirdIcteridae62010+100%1969
Northern House WrenTroglodytidae62025-21%1969
VeeryTurdidae62025-59%1969
Common GrackleIcteridae52025+190%1969
Cedar WaxwingBombycillidae52025+23%1969
Nashville WarblerParulidae52025-38%1969
Red-breasted NuthatchSittidae52025+200%1970
Pine WarblerParulidae52025+85%1971
Sandhill CraneGruidae52023+183%2001
White-throated SparrowPasserellidae42025+28%1969
Rose-breasted GrosbeakCardinalidae42025-60%1969
Barn SwallowHirundinidae42025-81%1969
American RedstartParulidae42025+567%1970
House SparrowPasseridae42024-53%1969
Broad-winged HawkAccipitridae42024+50%1973
MallardAnatidae42025+58%1974

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