BirdAnalyst
BBS Route · Utah · BCR 9

Iron Springs Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 42 survey years, no longer active.

76Species 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 →
42Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1979–2023Span
3Observers

Bird Species Found on Utah Iron Springs

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Iron Springs 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
Brewer's SparrowPasserellidae502019+175%1987
Western MeadowlarkIcteridae402023-21%1981
Common RavenCorvidae252023+110%1981
Yellow-headed BlackbirdIcteridae191989+300%1985
Northern MockingbirdMimidae152023+106%1982
Mourning DoveColumbidae132023-81%1981
Sagebrush SparrowPasserellidae102023-63%1981
Lark SparrowPasserellidae92023+71%1982
House SparrowPasseridae82023+100%1981
Western KingbirdTyrannidae72023+85%1981
House FinchFringillidae62023-41%1985
Sage ThrasherMimidae62023-67%1987
Eurasian Collared-DoveColumbidae62023+13%2011
Red-winged BlackbirdIcteridae52008-79%1981
Pinyon JayCorvidae52023-48%1982
Lesser GoldfinchFringillidae42018+150%2004
Brewer's BlackbirdIcteridae32023-83%1981
European StarlingSturnidae32023+75%1982
Bullock's OrioleIcteridae32023+275%1985
Cliff SwallowHirundinidae32015-77%1999
Western TanagerCardinalidae32019+100%2008
Horned LarkAlaudidae22023-88%1981
Black-throated SparrowPasserellidae22023-80%1986
Mountain BluebirdTurdidae22023-50%1991
Burrowing OwlStrigidae21986+100%1982
Barn SwallowHirundinidae22023-57%1987
Blue GrosbeakCardinalidae22001+0%1989
Yellow WarblerParulidae22019+33%1996
Cinnamon TealAnatidae21989n/an/a
Black-billed MagpieCorvidae22014-65%1995
Common PoorwillCaprimulgidae21992n/an/a
Scott's OrioleIcteridae22002n/an/a
BushtitAegithalidae22006n/an/a
KilldeerCharadriidae12022-57%1985
Northern HarrierAccipitridae11997-38%1981
American KestrelFalconidae12019+0%1981
Say's PhoebeTyrannidae12023+33%1982
Vesper SparrowPasserellidae11988-48%1981
Violet-green SwallowHirundinidae11985-94%1979
Loggerhead ShrikeLaniidae12018+0%1981

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