BirdAnalyst
BBS Route · Wyoming · BCR 10

Riverside Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 37 survey years, still active.

106Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
4Observers

Bird Species Found on Wyoming Riverside

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Riverside 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 SwallowHirundinidae942025-5%1970
Red-winged BlackbirdIcteridae592025+31%1970
Black-billed MagpieCorvidae322025-1%1970
Common RavenCorvidae282025+127%1989
Yellow WarblerParulidae272025+52%1970
American RobinTurdidae262025-50%1970
Vesper SparrowPasserellidae222025+232%1989
MallardAnatidae192025+21%1990
European StarlingSturnidae192025+475%1991
Wilson's SnipeScolopacidae172025+950%1971
Western MeadowlarkIcteridae152025-37%1970
Northern House WrenTroglodytidae152025+550%1990
Brewer's SparrowPasserellidae132025+156%1989
Savannah SparrowPasserellidae112025+4%2000
Song SparrowPasserellidae92025+19%1970
Horned LarkAlaudidae82025+54%1971
American GoldfinchFringillidae82025+18%1970
American CrowCorvidae82025+46%1993
Mountain BluebirdTurdidae82025+40%1991
Tree SwallowHirundinidae72025-52%1991
Greater Sage-GrousePhasianidae61971-46%1970
Brown-headed CowbirdIcteridae62018+229%1991
Brewer's BlackbirdIcteridae52025-87%1989
Western Wood-PeweeTyrannidae52025+167%1998
Warbling VireoVireonidae52025+120%1998
KilldeerCharadriidae42025-46%1970
Mourning DoveColumbidae42024-70%1970
Broad-tailed HummingbirdTrochilidae42025+80%1994
Violet-green SwallowHirundinidae42018-65%1995
White-crowned SparrowPasserellidae42025+180%2000
Green-tailed TowheePasserellidae32025+233%2000
Common MerganserAnatidae32023+0%1999
Blue-winged TealAnatidae31997n/an/a
Steller's JayCorvidae32000n/an/a
Wilson's PhalaropeScolopacidae32005+200%2003
Black-billed CuckooCuculidae21969n/an/a
Eastern KingbirdTyrannidae22008+50%2005
Common GrackleIcteridae22017-60%1971
Pine SiskinFringillidae22014-82%1971
Mountain ChickadeeParidae22003-33%1970

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