BirdAnalyst
BBS Route · Utah · BCR 16

Beaver Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 127 species recorded across 49 survey years, still active.

127Species 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 →
49Years 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
7Observers

Bird Species Found on Utah Beaver

Top 40 of 127 species by most recent count. Each links to its species trend.

Species recorded on the Beaver 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 SparrowPasseridae342025-53%1973
American RobinTurdidae272025-54%1973
Pine SiskinFringillidae202025+56%1979
Warbling VireoVireonidae192025+164%1980
Western TanagerCardinalidae162025+400%1980
Band-tailed PigeonColumbidae13199613×1968
European StarlingSturnidae122025+178%1973
Eurasian Collared-DoveColumbidae122025+28%2009
Western Wood-PeweeTyrannidae112025-39%1980
Chipping SparrowPasserellidae102025-12%1979
Costa's HummingbirdTrochilidae101971n/an/a
Yellow WarblerParulidae92025+92%1974
Western MeadowlarkIcteridae82025-69%1973
Western KingbirdTyrannidae82025+144%1979
Spotted TowheePasserellidae82025+150%1981
House FinchFringillidae72025-14%1979
Black-headed GrosbeakCardinalidae72025+500%1979
White-crowned SparrowPasserellidae72025+56%1982
MacGillivray's WarblerParulidae72025+113%1982
Cassin's FinchFringillidae62025-42%1980
Common RavenCorvidae62025-10%1980
Horned LarkAlaudidae62025+89%1984
Virginia's WarblerParulidae62025+300%2011
Barn SwallowHirundinidae52025-42%1973
Ruby-crowned KingletRegulidae52025+117%1980
White-throated SwiftApodidae52025-82%1979
Northern Rough-winged SwallowHirundinidae52025-61%1980
Dusky FlycatcherTyrannidae52025+60%1981
Hermit ThrushTurdidae42025-33%1981
MallardAnatidae42010-40%1981
Broad-tailed HummingbirdTrochilidae32025-14%1979
Black-billed MagpieCorvidae32024-80%1973
Red-winged BlackbirdIcteridae32025-38%1974
Northern MockingbirdMimidae32025+67%1984
Brown-headed CowbirdIcteridae32025-43%1980
Bank SwallowHirundinidae32025-67%2023
Swainson's ThrushTurdidae31973n/an/a
Tree SwallowHirundinidae32025-82%1980
Clark's NutcrackerCorvidae32025-42%1984
Bullock's OrioleIcteridae32025+0%1981

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