BirdAnalyst
BBS Route · Wyoming · BCR 17

Gvnt Valley Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 98 species recorded across 32 survey years, still active.

98Species 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2025Span
2Observers

Bird Species Found on Wyoming Gvnt Valley

Top 40 of 98 species by most recent count. Each links to its species trend.

Species recorded on the Gvnt Valley 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
Western MeadowlarkIcteridae2772025+108%1994
Red-winged BlackbirdIcteridae1092025+61%1994
Brewer's BlackbirdIcteridae362025-45%1994
Cliff SwallowHirundinidae212025-63%1994
Vesper SparrowPasserellidae202025+28%1994
Grasshopper SparrowPasserellidae182025+131%1996
BobolinkIcteridae142025+88%2003
Bank SwallowHirundinidae102017-47%2009
Mourning DoveColumbidae92025-30%1994
KilldeerCharadriidae82025+433%1995
American CrowCorvidae72025+83%1994
Eastern KingbirdTyrannidae62025-17%1994
Black-billed MagpieCorvidae62025+143%1994
European StarlingSturnidae52025+27%1998
Lark BuntingPasserellidae52025-61%1996
Common NighthawkCaprimulgidae52025+14%1995
Violet-green SwallowHirundinidae52018-55%1999
Northern HarrierAccipitridae42019+200%2001
Sharp-tailed GrousePhasianidae32025+25%2000
Red-tailed HawkAccipitridae32025-46%1994
American RobinTurdidae32025-44%1994
MallardAnatidae32025-36%1995
Wilson's SnipeScolopacidae32025+125%1996
Lewis's WoodpeckerPicidae32005-53%1996
Turkey VultureCathartidae32025+100%2003
Ferruginous HawkAccipitridae32016+133%1998
Bullock's OrioleIcteridae32025+167%2000
Spotted TowheePasserellidae32025+0%1999
Canada GooseAnatidae32019+160%2007
Long-billed CurlewScolopacidae32003+25%1999
Savannah SparrowPasserellidae32018+25%2005
Upland SandpiperScolopacidae22025+75%1994
Common GrackleIcteridae22025-88%2000
Barn SwallowHirundinidae22025-65%1994
Mountain BluebirdTurdidae22025-47%1994
Chipping SparrowPasserellidae22025+150%1995
American GoldfinchFringillidae22025-65%1997
Loggerhead ShrikeLaniidae22025+40%1996
Yellow WarblerParulidae22025+17%1997
Eastern BluebirdTurdidae22004+0%2000

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