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BBS Route · Wyoming · BCR 10

Rock Springs Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 93 species recorded across 29 survey years, no longer active.

93Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1977–2022Span
5Observers

Bird Species Found on Wyoming Rock Springs

Top 40 of 93 species by most recent count. Each links to its species trend.

Species recorded on the Rock Springs 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
Green-tailed TowheePasserellidae372022+550%1980
Sage ThrasherMimidae202022-85%1979
Horned LarkAlaudidae192022-89%1979
Pinyon JayCorvidae122013-64%1980
Western MeadowlarkIcteridae122022-74%1979
Canyon WrenTroglodytidae111983-23%1979
Rock WrenTroglodytidae102022-52%1979
Yellow-breasted ChatIcteriidae81983-32%1980
Vesper SparrowPasserellidae72022-63%1979
Mountain BluebirdTurdidae72022-51%1979
Red-winged BlackbirdIcteridae62022-10%1979
Sagebrush SparrowPasserellidae62022-88%1979
Violet-green SwallowHirundinidae62022-8%1979
Yellow WarblerParulidae61983-37%1979
Brewer's BlackbirdIcteridae52022-67%1979
Brewer's SparrowPasserellidae52022-87%1979
House SparrowPasseridae52022-90%1981
Woodhouse's Scrub-JayCorvidae52022n/an/a
Mourning DoveColumbidae42022-91%1979
Song SparrowPasserellidae42022+80%1979
Tree SwallowHirundinidae42022-36%1981
Red-naped SapsuckerPicidae31982+133%1979
White-crowned SparrowPasserellidae31982+50%1980
American AvocetRecurvirostridae32012+50%1990
American KestrelFalconidae22022-78%1979
Common NighthawkCaprimulgidae22015-58%1979
Black-billed MagpieCorvidae22022-77%1979
Lincoln's SparrowPasserellidae21982-20%1978
European StarlingSturnidae22021-90%1980
Thick-billed LongspurCalcariidae21978n/an/a
Chipping SparrowPasserellidae22017-84%1981
Bank SwallowHirundinidae21983+200%1979
Prairie FalconFalconidae22021-13%1982
Rock PigeonColumbidae22021-81%1983
Lark BuntingPasserellidae22021-70%1992
Black-throated Gray WarblerParulidae22015-25%1991
Northern MockingbirdMimidae22022+100%2021
KilldeerCharadriidae12017-67%1979
ChukarPhasianidae11977n/an/a
Northern HarrierAccipitridae12018+25%1983

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