BirdAnalyst
BBS Route · Iowa · BCR 22

Red Rock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 44 survey years, still active.

101Species 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 →
44Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
9Observers

Bird Species Found on Iowa Red Rock

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Red Rock 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
House SparrowPasseridae1472025-7%1970
Red-winged BlackbirdIcteridae1352025+60%1970
American RobinTurdidae1052025+425%1970
Canada GooseAnatidae772025+231%1997
European StarlingSturnidae742025+809%1970
DickcisselCardinalidae632025+17%1970
Northern CardinalCardinalidae572025+159%1970
Barn SwallowHirundinidae492025+200%1970
Mourning DoveColumbidae412025+18%1970
American CrowCorvidae402025+183%1970
Brown-headed CowbirdIcteridae372025+180%1970
Chipping SparrowPasserellidae36202526×1972
Common GrackleIcteridae312025+30%1970
Northern House WrenTroglodytidae292025+92%1970
Gray CatbirdMimidae272025+305%1970
Indigo BuntingCardinalidae262025+223%1970
Eastern MeadowlarkIcteridae252025+371%1970
Turkey VultureCathartidae23202513×1974
Cedar WaxwingBombycillidae232025+583%1991
Common YellowthroatParulidae212025+23%1970
Ring-necked PheasantPhasianidae192025-11%1970
Eastern KingbirdTyrannidae182025+277%1970
Blue JayCorvidae142025+34%1970
Rose-breasted GrosbeakCardinalidae142025+76%1970
KilldeerCharadriidae122025+342%1970
Baltimore OrioleIcteridae102025+183%1970
Song SparrowPasserellidae102025+33%1970
Warbling VireoVireonidae102025+343%1980
White-breasted NuthatchSittidae92024+320%1972
Red-headed WoodpeckerPicidae82025-42%1970
Horned LarkAlaudidae82025+30%1970
Eastern Wood-PeweeTyrannidae82025+114%1972
Wild TurkeyPhasianidae82025+57%2005
Red-bellied WoodpeckerPicidae72025+114%1979
Eurasian Collared-DoveColumbidae72025+364%2006
Chimney SwiftApodidae62025-35%1970
BobolinkIcteridae62025+83%1973
Great Crested FlycatcherTyrannidae62025+43%1972
Black-capped ChickadeeParidae52025+82%1970
Eastern BluebirdTurdidae52025+0%1970

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