BirdAnalyst
BBS Route · Wisconsin · BCR 12

Eagle River Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 144 species recorded across 59 survey years, still active.

144Species 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 →
59Years 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 Eagle River

Top 40 of 144 species by most recent count. Each links to its species trend.

Species recorded on the Eagle River 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 VireoVireonidae922025+131%1968
OvenbirdParulidae482025+9%1968
American RobinTurdidae422025+1%1968
Chipping SparrowPasserellidae322025+54%1968
Nashville WarblerParulidae232025+321%1968
Black-throated Green WarblerParulidae182025+26%1968
Northern Rough-winged SwallowHirundinidae182011+667%1975
Pine WarblerParulidae17202512×1968
White-throated SparrowPasserellidae152025+13%1968
Blackburnian WarblerParulidae152025+143%1968
Black-capped ChickadeeParidae152025+113%1968
Hermit ThrushTurdidae152025+60%1968
Chestnut-sided WarblerParulidae132025-25%1968
American CrowCorvidae122025+32%1968
Black-and-white WarblerParulidae122025+136%1968
Song SparrowPasserellidae112025-62%1968
Red-breasted NuthatchSittidae112025+375%1971
Indigo BuntingCardinalidae102025+82%1968
Downy WoodpeckerPicidae92024+120%1968
Yellow-bellied SapsuckerPicidae92025+83%1969
American RedstartParulidae92025+178%1968
Common RavenCorvidae82024+28%1969
Cedar WaxwingBombycillidae82025-11%1970
Northern ParulaParulidae82025+178%1968
Winter WrenTroglodytidae82025+214%1969
Mourning DoveColumbidae82025+433%1981
Tree SwallowHirundinidae72023-50%1968
Warbling VireoVireonidae72010+29%1969
Blue JayCorvidae62025+6%1968
VeeryTurdidae62025-16%1968
Cape May WarblerParulidae62022+13%1979
Yellow-bellied FlycatcherTyrannidae52023+233%1971
American GoldfinchFringillidae52025+79%1968
Least FlycatcherTyrannidae42025-69%1968
Common GrackleIcteridae42025-60%1968
Common LoonGaviidae32025-50%1970
Hairy WoodpeckerPicidae32025+350%1968
Eastern Wood-PeweeTyrannidae32025-27%1968
Purple FinchFringillidae32025-42%1968
Swamp SparrowPasserellidae32025+150%1968

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