BirdAnalyst
BBS Route · Utah · BCR 16

M Warner Res Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 107 species recorded across 26 survey years, still active.

107Species 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2024Span
11Observers

Bird Species Found on Utah M Warner Res

Top 40 of 107 species by most recent count. Each links to its species trend.

Species recorded on the M Warner Res 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
Vesper SparrowPasserellidae732024+10%1995
Brewer's BlackbirdIcteridae642024-54%1995
Brewer's SparrowPasserellidae532024+218%1996
Mountain BluebirdTurdidae402024+142%1995
Sage ThrasherMimidae232024+180%1995
American White PelicanPelecanidae202022-53%2011
Green-tailed TowheePasserellidae192024+82%1995
Turkey VultureCathartidae192024+41%1996
Common RavenCorvidae182024+228%1995
Horned LarkAlaudidae172017+157%1995
American RobinTurdidae172024+200%1995
Eared GrebePodicipedidae15202411×1995
American CootRallidae142024+200%1998
Western MeadowlarkIcteridae112024-63%1995
Western GrebePodicipedidae102024+920%1999
Red-winged BlackbirdIcteridae82024+375%1996
Black-capped ChickadeeParidae71993n/an/a
Lesser ScaupAnatidae62024+22%1995
Black-billed MagpieCorvidae62024+120%1995
Chipping SparrowPasserellidae62024+83%1995
Broad-tailed HummingbirdTrochilidae62024+67%1996
Pine SiskinFringillidae62023-36%1997
Spotted TowheePasserellidae62024+275%2003
Greater Sage-GrousePhasianidae62013+50%2005
Pied-billed GrebePodicipedidae62018n/an/a
Western TanagerCardinalidae52024-9%1995
Tree SwallowHirundinidae52024+75%1995
American WigeonAnatidae52022+107%2000
Green-winged TealAnatidae52018+60%2000
Cliff SwallowHirundinidae52016+160%2002
Ring-necked DuckAnatidae52016+750%2003
MallardAnatidae42024+24%1996
Northern ShovelerAnatidae42018+100%1995
Mourning DoveColumbidae42024-80%1995
Lark SparrowPasserellidae42024+225%2015
Barn SwallowHirundinidae42024-55%1995
Cinnamon TealAnatidae42024+0%1997
European StarlingSturnidae42010-69%1997
Western KingbirdTyrannidae32016+25%2006
Sagebrush SparrowPasserellidae3201611×2004

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