BirdAnalyst
BBS Route · Minnesota · BCR 12

Hart Lake Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 128 species recorded across 55 survey years, still active.

128Species 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 →
55Years 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
5Observers

Bird Species Found on Minnesota Hart Lake

Top 40 of 128 species by most recent count. Each links to its species trend.

Species recorded on the Hart 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
Red-eyed VireoVireonidae832025+77%1969
White-throated SparrowPasserellidae732025+96%1969
OvenbirdParulidae722025+13%1969
American RobinTurdidae662025+72%1969
Chestnut-sided WarblerParulidae612025+10%1969
VeeryTurdidae532025+33%1969
Nashville WarblerParulidae512025+3%1969
Mourning WarblerParulidae472025+60%1969
Song SparrowPasserellidae382025+192%1969
Double-crested CormorantPhalacrocoracidae381997+660%1995
American RedstartParulidae302025+453%1969
Common YellowthroatParulidae282025+57%1969
Blue JayCorvidae272025+83%1969
Chipping SparrowPasserellidae242025+71%1969
Magnolia WarblerParulidae232025+259%1969
Least FlycatcherTyrannidae202025+31%1969
American CrowCorvidae202025+20%1969
Black-capped ChickadeeParidae182025+300%1970
Black-and-white WarblerParulidae172025+214%1969
Alder FlycatcherTyrannidae152025+144%1969
Hermit ThrushTurdidae122025-38%1969
Blackburnian WarblerParulidae112025+38%1970
Canada WarblerParulidae92025+62%1969
Red-breasted NuthatchSittidae92025+317%1969
Blue-headed VireoVireonidae82025+144%1970
Pine WarblerParulidae82025+217%1977
American GoldfinchFringillidae72025+300%1971
Common RavenCorvidae62025+87%1970
Yellow-bellied SapsuckerPicidae62025+338%1975
Northern ParulaParulidae62025+633%1981
Swamp SparrowPasserellidae52025+120%1969
Black-throated Green WarblerParulidae52025+200%1971
Rose-breasted GrosbeakCardinalidae42025+82%1969
Wilson's SnipeScolopacidae42025+0%1973
Eastern BluebirdTurdidae42025+0%1990
Great Blue HeronArdeidae42009+100%1973
Wood ThrushTurdidae42024+125%1974
Yellow-bellied FlycatcherTyrannidae42025+300%1983
Pileated WoodpeckerPicidae32023+267%1982
European StarlingSturnidae31999+18%1974

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