BirdAnalyst
BBS Route · Missouri · BCR 22

Rensselaer Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 96 species recorded across 36 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2025Span
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 BlackbirdIcteridae1582025-14%1975
Eastern MeadowlarkIcteridae562025-49%1975
DickcisselCardinalidae452025-47%1975
Cliff SwallowHirundinidae432025+2%2008
American RobinTurdidae392025+40%1975
Mourning DoveColumbidae362025-26%1975
Indigo BuntingCardinalidae322025+83%1975
Barn SwallowHirundinidae302025+21%1975
Northern CardinalCardinalidae272025+60%1975
House SparrowPasseridae272025-81%1975
European StarlingSturnidae222025-17%1975
Chipping SparrowPasserellidae19202517×1981
Northern House WrenTroglodytidae192025+50%1975
Turkey VultureCathartidae182025+450%1986
Horned LarkAlaudidae162025-69%1975
Brown-headed CowbirdIcteridae162025+338%1975
Common GrackleIcteridae162025-81%1975
Common YellowthroatParulidae152025-31%1975
Tufted TitmouseParidae152025+40%1975
Gray CatbirdMimidae15202512×1977
Eastern Wood-PeweeTyrannidae142025+414%1975
Blue JayCorvidae132025-37%1975
KilldeerCharadriidae112025+760%1975
Eastern BluebirdTurdidae112025+58%1975
Blue GrosbeakCardinalidae112025+233%1982
Purple MartinHirundinidae112025+339%1977
Brown ThrasherMimidae102025-35%1975
Red-headed WoodpeckerPicidae92025-36%1975
Canada GooseAnatidae92025-15%2014
Red-bellied WoodpeckerPicidae72025+160%1975
Eastern KingbirdTyrannidae72025+38%1975
Field SparrowPasserellidae72025-84%1975
Rock PigeonColumbidae62025+38%1975
Eastern TowheePasserellidae62025+180%1997
Tree SwallowHirundinidae62004+500%1993
House FinchFringillidae62025+250%2019
Warbling VireoVireonidae52025+60%1975
American KestrelFalconidae52025+200%1981
American CrowCorvidae42025-61%1975
Baltimore OrioleIcteridae42024+14%1978

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