BirdAnalyst
BBS Route · Missouri · BCR 22

Rensselaer Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 96 species recorded across 35 survey years, still active.

96Species 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 →
35Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2024Span
7Observers

Bird Species Found on Missouri Rensselaer

Top 40 of 96 species by most recent count. Each links to its species trend.

Species recorded on the Rensselaer 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-winged BlackbirdIcteridae1232024-9%1975
European StarlingSturnidae572024+12%1975
Mourning DoveColumbidae472024-28%1975
Brown-headed CowbirdIcteridae452024+384%1975
DickcisselCardinalidae452024-37%1975
American RobinTurdidae432024+50%1975
Eastern MeadowlarkIcteridae422024-58%1975
Rock PigeonColumbidae402024+100%1975
Northern CardinalCardinalidae342024+76%1975
House SparrowPasseridae322024-81%1975
Purple MartinHirundinidae322024+300%1977
Barn SwallowHirundinidae302024+11%1975
Indigo BuntingCardinalidae292024+93%1975
Northern Rough-winged SwallowHirundinidae192019+164%1975
KilldeerCharadriidae16202411×1975
Eastern KingbirdTyrannidae152024+43%1975
Chipping SparrowPasserellidae14202414×1981
Northern House WrenTroglodytidae132024+47%1975
Common YellowthroatParulidae122024-30%1975
Gray CatbirdMimidae122024+967%1977
House FinchFringillidae102024+167%2019
Cliff SwallowHirundinidae102024-55%2008
Red-headed WoodpeckerPicidae82024-43%1975
Tufted TitmouseParidae82024-20%1975
Eastern BluebirdTurdidae82024+11%1975
Turkey VultureCathartidae82024+217%1986
Eurasian Tree SparrowPasseridae82019+300%1998
American GoldfinchFringillidae72024+29%1975
Northern BobwhiteOdontophoridae62024-84%1975
Song SparrowPasserellidae62024+233%1975
Tree SwallowHirundinidae62004+500%1993
Eastern Wood-PeweeTyrannidae52024+343%1975
Horned LarkAlaudidae52024-75%1975
Brown ThrasherMimidae52024-62%1975
Blue JayCorvidae42024-49%1975
Baltimore OrioleIcteridae42024+14%1978
Common GrackleIcteridae42024-80%1975
Rose-breasted GrosbeakCardinalidae42024+0%1975
Northern MockingbirdMimidae42024-76%1975
Black-capped ChickadeeParidae42024+133%1977

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