BirdAnalyst
BBS Route · Utah · BCR 16

Alton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 18 survey years, no longer active.

120Species 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 →
18Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1997–2019Span
3Observers

Bird Species Found on Utah Alton

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Alton 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
Canada GooseAnatidae322019+820%2007
Eared GrebePodicipedidae22199811×1997
Cinnamon TealAnatidae152019+16%1999
European StarlingSturnidae152011+414%1999
Violet-green SwallowHirundinidae142019+91%2001
Chipping SparrowPasserellidae132019-8%1999
Brewer's SparrowPasserellidae92019-34%1999
MallardAnatidae82019+168%1999
Brewer's BlackbirdIcteridae82018-83%1999
House FinchFringillidae82019+160%2001
Western Wood-PeweeTyrannidae72011-14%1999
Common RavenCorvidae72019-19%1999
Warbling VireoVireonidae72019-68%1999
Plumbeous VireoVireonidae72019-14%1999
House SparrowPasseridae72019+140%1999
Ring-necked DuckAnatidae62008-82%1999
Lark SparrowPasserellidae62019+29%2000
Black-headed GrosbeakCardinalidae62011+67%1999
Northern Rough-winged SwallowHirundinidae62019+160%1999
Green-tailed TowheePasserellidae52011-71%1999
Mountain ChickadeeParidae52017-50%1999
American RobinTurdidae52019-89%1999
American CootRallidae42019-80%1999
Mourning DoveColumbidae42019-56%1999
Common NighthawkCaprimulgidae42004+50%1999
Pinyon JayCorvidae42010+25%2003
Brown-headed CowbirdIcteridae42019-25%1999
Western MeadowlarkIcteridae42018-87%1999
Pine SiskinFringillidae42010-70%1999
Song SparrowPasserellidae42011-29%1999
Bewick's WrenTroglodytidae42017+150%1999
Blue-gray GnatcatcherPolioptilidae42019-62%1999
Evening GrosbeakFringillidae41998n/an/a
Tree SwallowHirundinidae42006+300%2000
GadwallAnatidae42010-69%2001
Steller's JayCorvidae32018-47%1999
Woodhouse's Scrub-JayCorvidae32019+200%2000
Vesper SparrowPasserellidae32019-38%1999
Lazuli BuntingCardinalidae32011-9%2001
Virginia's WarblerParulidae32011-69%1999

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