BirdAnalyst
BBS Route · Utah · BCR 16

Grizzly Rdge Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 86 species recorded across 31 survey years, still active.

86Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2024Span
4Observers

Bird Species Found on Utah Grizzly Rdge

Top 40 of 86 species by most recent count. Each links to its species trend.

Species recorded on the Grizzly Rdge 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
Ruby-crowned KingletRegulidae752024+121%1992
Mountain ChickadeeParidae582024+900%1992
American RobinTurdidae562024+11%1992
Mountain BluebirdTurdidae512024+278%1992
Hermit ThrushTurdidae492024+109%1993
Pine SiskinFringillidae452024+5%1992
Chipping SparrowPasserellidae422024+108%1992
Warbling VireoVireonidae372024+248%1992
Green-tailed TowheePasserellidae342024+153%1993
Tree SwallowHirundinidae242024+113%1994
Western TanagerCardinalidae202024+362%1996
Red-breasted NuthatchSittidae192024+55%1996
Cassin's FinchFringillidae142024+5%1993
Common RavenCorvidae122024+260%1996
Ruffed GrousePhasianidae102024+333%2001
MallardAnatidae102024+188%1997
Dusky FlycatcherTyrannidae82024+357%1998
Vesper SparrowPasserellidae72024-60%1992
Hammond's FlycatcherTyrannidae72024+21%2001
Broad-tailed HummingbirdTrochilidae52024+160%1992
House FinchFringillidae51992+25%1986
MacGillivray's WarblerParulidae52024+125%2001
Brewer's BlackbirdIcteridae42016-40%1994
Brewer's SparrowPasserellidae42024-58%1992
Black-capped ChickadeeParidae42022-78%1992
Northern ShovelerAnatidae41996n/an/a
Spotted SandpiperScolopacidae41996n/an/a
American CrowCorvidae42009+100%2006
Common NighthawkCaprimulgidae32015+100%1993
Northern Rough-winged SwallowHirundinidae31986n/an/a
American KestrelFalconidae32024+67%2000
Clark's NutcrackerCorvidae32002+67%1997
Song SparrowPasserellidae22010-50%1994
White-breasted NuthatchSittidae22022+100%1986
KilldeerCharadriidae22022-38%1996
Canada JayCorvidae22023+50%2001
Yellow WarblerParulidae21992n/an/a
Great Horned OwlStrigidae22017+0%1993
Evening GrosbeakFringillidae22023-50%1994
Red CrossbillFringillidae22024-81%1998

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