BirdAnalyst
BBS Route · Minnesota · BCR 12

Island Lake Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 111 species recorded across 32 survey years, no longer active.

111Species 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2017Span
4Observers

Bird Species Found on Minnesota Island Lake

Top 40 of 111 species by most recent count. Each links to its species trend.

Species recorded on the Island Lake 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
Song SparrowPasserellidae232017-34%1970
Red-eyed VireoVireonidae222017-7%1970
OvenbirdParulidae222017+25%1970
White-throated SparrowPasserellidae212017-10%1970
Common YellowthroatParulidae152017-13%1970
American RobinTurdidae152017-53%1970
American CrowCorvidae142017+173%1970
Common RavenCorvidae132017+450%1973
Nashville WarblerParulidae112017-53%1970
VeeryTurdidae112017-46%1970
Chestnut-sided WarblerParulidae102017-61%1970
Cliff SwallowHirundinidae91995-72%1970
Tree SwallowHirundinidae81995-37%1970
Brown-headed CowbirdIcteridae61995-68%1970
Black-and-white WarblerParulidae62017+50%1971
Northern House WrenTroglodytidae62016-48%1970
Swamp SparrowPasserellidae62017+25%1971
Purple MartinHirundinidae61988+0%1972
Evening GrosbeakFringillidae61995+200%1973
Rock PigeonColumbidae52016+160%1979
Brewer's BlackbirdIcteridae51995+80%1971
Savannah SparrowPasserellidae51992-13%1970
Mourning WarblerParulidae52017-53%1970
Sedge WrenTroglodytidae52015+50%1970
Eastern BluebirdTurdidae51988+75%1972
MallardAnatidae51995-59%1973
Least FlycatcherTyrannidae42017-58%1970
Chipping SparrowPasserellidae42017-50%1970
Black-capped ChickadeeParidae42017+117%1971
Black-throated Green WarblerParulidae42017+167%1989
Alder FlycatcherTyrannidae31989-50%1970
Blue JayCorvidae32017+8%1970
Purple FinchFringillidae31993-56%1970
Barn SwallowHirundinidae31994+0%1971
Eastern Wood-PeweeTyrannidae32017+167%1974
White-breasted NuthatchSittidae32016+133%1979
Ring-billed GullLaridae31988-25%1986
Northern HarrierAccipitridae22017-43%1970
Red-winged BlackbirdIcteridae22017-68%1970
Gray CatbirdMimidae22015-30%1970

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