BirdAnalyst
BBS Route · Wyoming · BCR 17

Riverview Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 79 species recorded across 24 survey years, still active.

79Species 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 →
24Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1982–2022Span
5Observers

Bird Species Found on Wyoming Riverview

Top 40 of 79 species by most recent count. Each links to its species trend.

Species recorded on the Riverview 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 MeadowlarkIcteridae2122022+24%1984
European StarlingSturnidae91202238×2016
Lark BuntingPasserellidae412022-51%1984
Cliff SwallowHirundinidae412022-58%1990
Red-winged BlackbirdIcteridae282022+25%1987
Mourning DoveColumbidae172022-52%1984
Grasshopper SparrowPasserellidae112022+47%1988
Common NighthawkCaprimulgidae102022-31%1984
Barn SwallowHirundinidae102022-70%1984
Horned LarkAlaudidae72022-86%1984
Sagebrush SparrowPasserellidae71989n/an/a
DickcisselCardinalidae72018+0%2015
KilldeerCharadriidae62022-64%1984
Bank SwallowHirundinidae61997+37%1984
Savannah SparrowPasserellidae61988-84%1984
RedheadAnatidae62021+200%1999
Long-billed CurlewScolopacidae62022+88%2016
American WigeonAnatidae52022+38%1992
MallardAnatidae42022+0%1987
Red-tailed HawkAccipitridae42022+17%1988
Eastern KingbirdTyrannidae42022-47%1988
Common GrackleIcteridae42021-62%1988
Loggerhead ShrikeLaniidae42022+38%1987
Brown-headed CowbirdIcteridae42022+133%1990
Wilson's PhalaropeScolopacidae42022+80%2014
Rock PigeonColumbidae42015n/an/a
Northern PintailAnatidae32021-25%1994
Wild TurkeyPhasianidae31992+200%1984
Northern Rough-winged SwallowHirundinidae32015-79%1993
Cassin's SparrowPasserellidae32018n/an/a
Northern ShovelerAnatidae22022+150%2015
Swainson's HawkAccipitridae22016-33%1984
American KestrelFalconidae22022-60%1984
Brewer's BlackbirdIcteridae22022-77%1988
Golden EagleAccipitridae22015+50%1992
GadwallAnatidae22022+83%2016
Green-winged TealAnatidae21998+100%1992
American CootRallidae22022+23%1998
American GoldfinchFringillidae21994n/an/a
Bullock's OrioleIcteridae22022+100%1997

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