BirdAnalyst
BBS Route · Utah · BCR 9

Stock Res Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 40 species recorded across 28 survey years, still active.

40Species 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 →
28Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1986–2021Span
3Observers

Bird Species Found on Utah Stock Res

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

Species recorded on the Stock 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
Horned LarkAlaudidae882021-12%1988
Common RavenCorvidae392021+74%1988
Black-throated SparrowPasserellidae152021-52%1988
European StarlingSturnidae152017+650%1996
House SparrowPasseridae102021+146%1990
Mourning DoveColumbidae52019-63%1988
Western KingbirdTyrannidae42021+14%1988
Sagebrush SparrowPasserellidae42019-40%1989
Loggerhead ShrikeLaniidae42004+75%1990
Bullock's OrioleIcteridae32019+50%2003
Rock WrenTroglodytidae32019+40%1989
Say's PhoebeTyrannidae21997-25%1994
Brewer's BlackbirdIcteridae22001-75%1988
Brown-headed CowbirdIcteridae22019+100%1990
Vesper SparrowPasserellidae21988n/an/a
Brewer's SparrowPasserellidae22019+29%1998
Burrowing OwlStrigidae22017-14%1998
Red-tailed HawkAccipitridae22016+20%1997
Cinnamon TealAnatidae21995n/an/a
Snowy EgretArdeidae21995n/an/a
MallardAnatidae22001-67%1999
KilldeerCharadriidae12021-17%1988
Ferruginous HawkAccipitridae12021+0%1993
Golden EagleAccipitridae12017+33%1989
Prairie FalconFalconidae12018-20%1990
Lark SparrowPasserellidae12000+0%1991
Red-winged BlackbirdIcteridae11998+0%1987
Northern HarrierAccipitridae11999-33%1992
Common NighthawkCaprimulgidae12014+0%1991
Northern MockingbirdMimidae12021+0%1993
House FinchFringillidae12021+0%1994
Sage ThrasherMimidae12005+250%1992
Western MeadowlarkIcteridae12006+20%1995
Black-necked StiltRecurvirostridae11995n/an/a
Common YellowthroatParulidae11995n/an/a
Western Wood-PeweeTyrannidae11998n/an/a
Black-chinned HummingbirdTrochilidae12000n/an/a
American RobinTurdidae12005+0%2001
Yellow WarblerParulidae12016+0%2005
Eurasian Collared-DoveColumbidae12021-75%2018

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