BirdAnalyst
BBS Route · Utah · BCR 16

Alton 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 48 species recorded across 4 survey years, still active.

48Species 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 →
4Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2021–2024Span
1Observers

Bird Species Found on Utah Alton 2

Top 40 of 48 species by most recent count. Each links to its species trend.

Species recorded on the Alton 2 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
MallardAnatidae352024+289%2023
Brewer's BlackbirdIcteridae282024+200%2022
Canada GooseAnatidae242024+145%2022
American RobinTurdidae202024+62%2022
Steller's JayCorvidae192021n/an/a
Yellow WarblerParulidae19202411×2022
Warbling VireoVireonidae172024+169%2022
Chipping SparrowPasserellidae162024-25%2022
Pinyon JayCorvidae122023n/an/a
Western MeadowlarkIcteridae112024+267%2023
Mourning DoveColumbidae102024+67%2022
Ash-throated FlycatcherTyrannidae92024+18%2022
Western TanagerCardinalidae92024+171%2022
Woodhouse's Scrub-JayCorvidae82022+100%2021
Plumbeous VireoVireonidae82024+129%2022
Hairy WoodpeckerPicidae62024+117%2022
Black-throated SparrowPasserellidae62024-23%2022
Black-throated Gray WarblerParulidae62024-42%2022
Spotted TowheePasserellidae52024+300%2022
Red-winged BlackbirdIcteridae42024-60%2021
Lesser GoldfinchFringillidae42024-30%2022
Violet-green SwallowHirundinidae42022-20%2021
House FinchFringillidae42024+100%2022
American CootRallidae32024-85%2021
Black-chinned HummingbirdTrochilidae32024+200%2021
Common RavenCorvidae32024+43%2022
Brown-headed CowbirdIcteridae32024-50%2021
Blue-gray GnatcatcherPolioptilidae32024-70%2021
Western Wood-PeweeTyrannidae32024+50%2023
Hermit ThrushTurdidae22023-86%2021
Great Blue HeronArdeidae22022n/an/a
Red-tailed HawkAccipitridae22022n/an/a
Bald EagleAccipitridae22022n/an/a
Ring-necked DuckAnatidae22023n/an/a
Ruby-crowned KingletRegulidae22024-33%2023
Dusky GrousePhasianidae12024+0%2021
Turkey VultureCathartidae12024+25%2022
American KestrelFalconidae12021n/an/a
OspreyPandionidae12023+0%2021
Broad-tailed HummingbirdTrochilidae12024+0%2021

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