BirdAnalyst
BBS Route · Michigan · BCR 12

Irons Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 15 survey years, no longer active.

95Species 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 →
15Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–1989Span
3Observers

Bird Species Found on Michigan Irons

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Irons 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 RobinTurdidae501989-45%1972
European StarlingSturnidae311989-62%1972
Chipping SparrowPasserellidae241989-34%1972
Cedar WaxwingBombycillidae221989-26%1972
Rose-breasted GrosbeakCardinalidae191989+168%1972
OvenbirdParulidae171989+100%1972
American CrowCorvidae161989+12%1972
Brown-headed CowbirdIcteridae161989-47%1972
Red-eyed VireoVireonidae161989-11%1972
Blue JayCorvidae141989+30%1972
Eastern KingbirdTyrannidae131989-3%1972
Baltimore OrioleIcteridae131989+9%1972
Common GrackleIcteridae131989+71%1972
Mourning DoveColumbidae101989+56%1973
Red-winged BlackbirdIcteridae101989-63%1972
Vesper SparrowPasserellidae101986-52%1972
Black-capped ChickadeeParidae91989-7%1972
Eastern Wood-PeweeTyrannidae81989+10%1972
Least FlycatcherTyrannidae81989+17%1972
Pine WarblerParulidae81989n/an/a
American GoldfinchFringillidae71989-59%1972
Song SparrowPasserellidae71989-48%1972
Tree SwallowHirundinidae71989-67%1972
KilldeerCharadriidae51989-43%1972
Gray CatbirdMimidae51989-30%1972
Wood DuckAnatidae51989+200%1979
Upland SandpiperScolopacidae41986+40%1972
Great Crested FlycatcherTyrannidae41989-47%1972
Field SparrowPasserellidae41989-80%1972
Scarlet TanagerCardinalidae41989+0%1972
Barn SwallowHirundinidae41986-86%1972
Chestnut-sided WarblerParulidae41989+17%1972
House SparrowPasseridae41989+40%1972
Brown ThrasherMimidae41989-52%1972
VeeryTurdidae41986-56%1972
Northern House WrenTroglodytidae41989+100%1975
Great Blue HeronArdeidae41989+150%1977
Eastern MeadowlarkIcteridae31989-35%1972
Indigo BuntingCardinalidae31989-27%1972
Wood ThrushTurdidae31986-64%1972

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