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BBS Route · Wyoming · BCR 10

Walcott Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 112 species recorded across 36 survey years, still active.

112Species 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1982–2025Span
5Observers

Bird Species Found on Wyoming Walcott

Top 40 of 112 species by most recent count. Each links to its species trend.

Species recorded on the Walcott 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
Cliff SwallowHirundinidae652025-23%1989
Western MeadowlarkIcteridae572025-41%1989
Vesper SparrowPasserellidae352025-27%1989
American RobinTurdidae292025+44%1989
Horned LarkAlaudidae282025-46%1989
Red-winged BlackbirdIcteridae262025+102%1989
Bank SwallowHirundinidae212018-56%1995
Brewer's BlackbirdIcteridae202025-9%1989
Yellow WarblerParulidae202025+87%1990
Green-tailed TowheePasserellidae142025-14%1989
Clark's NutcrackerCorvidae142001n/an/a
Mourning DoveColumbidae132025-16%1989
Sage ThrasherMimidae132025+178%1991
Savannah SparrowPasserellidae112025+100%1991
Brewer's SparrowPasserellidae102025-62%2002
Common RavenCorvidae9202512×2000
Rock WrenTroglodytidae82025-66%1989
MallardAnatidae72025+36%1989
Red-tailed HawkAccipitridae72025+43%1989
Tree SwallowHirundinidae72025-46%1990
Clay-colored SparrowPasserellidae72014+600%1990
KilldeerCharadriidae62025-54%1989
Black-billed MagpieCorvidae62025-36%1989
Wilson's WarblerParulidae61982n/an/a
Common GrackleIcteridae62021-25%1991
Sandhill CraneGruidae52025-5%1990
Lesser ScaupAnatidae52025-77%1991
GadwallAnatidae42021-36%1989
Barn SwallowHirundinidae42025-64%1990
European StarlingSturnidae4202530×1995
Brown-headed CowbirdIcteridae42025-93%1990
Black-capped ChickadeeParidae42021+300%1985
American WigeonAnatidae42025-57%1992
Song SparrowPasserellidae42025+43%2002
Violet-green SwallowHirundinidae42025+89%1994
American GoldfinchFringillidae42025-11%1999
Chipping SparrowPasserellidae42016+300%2013
Wilson's SnipeScolopacidae32025-67%1989
Greater Sage-GrousePhasianidae32013+333%1985
Swainson's HawkAccipitridae32025+0%1989

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