BirdAnalyst
BBS Route · Iowa · BCR 22

West Liberty Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 97 species recorded across 48 survey years, still active.

97Species 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 →
48Years 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
10Observers

Bird Species Found on Iowa West Liberty

Top 40 of 97 species by most recent count. Each links to its species trend.

Species recorded on the West Liberty 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 BlackbirdIcteridae1442025-11%1970
House SparrowPasseridae1332025-28%1970
American RobinTurdidae902025+324%1970
DickcisselCardinalidae382025-6%1970
Cliff SwallowHirundinidae262025+273%1987
KilldeerCharadriidae22202513×1972
Northern CardinalCardinalidae192025+219%1970
Chipping SparrowPasserellidae192025+517%1971
European StarlingSturnidae182025-49%1970
Eastern MeadowlarkIcteridae182025-8%1970
Common GrackleIcteridae182025-90%1970
Eurasian Tree SparrowPasseridae18202419×2013
Common YellowthroatParulidae172025+68%1970
Northern House WrenTroglodytidae162025+21%1970
Song SparrowPasserellidae152025+29%1970
Brown-headed CowbirdIcteridae142025+96%1970
American GoldfinchFringillidae142025+30%1970
Barn SwallowHirundinidae142025+16%1970
Mourning DoveColumbidae132025+100%1970
Tree SwallowHirundinidae112007+450%1986
Canada GooseAnatidae102015+100%2010
Indigo BuntingCardinalidae92025+67%1970
Gray CatbirdMimidae92025+177%1972
Turkey VultureCathartidae92025+140%2013
Cedar WaxwingBombycillidae82025+71%1979
Ring-necked PheasantPhasianidae72025-76%1970
Chimney SwiftApodidae72025-67%1970
Purple MartinHirundinidae72025+363%1971
Vesper SparrowPasserellidae62019+63%1970
Warbling VireoVireonidae62025+150%1970
Upland SandpiperScolopacidae52024+150%1976
Rose-breasted GrosbeakCardinalidae52025+200%1972
American KestrelFalconidae52024+57%1994
Eastern KingbirdTyrannidae42025-31%1970
Brown ThrasherMimidae42025-73%1970
House FinchFringillidae42025-13%1995
Eurasian Collared-DoveColumbidae42025+800%2015
Red-headed WoodpeckerPicidae32025-67%1970
Eastern Wood-PeweeTyrannidae32025-30%1971
Horned LarkAlaudidae32024-44%1970

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