BirdAnalyst
BBS Route · Wyoming · BCR 10

Wilson Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 27 survey years, still active.

120Species 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 →
27Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1979–2024Span
5Observers

Bird Species Found on Wyoming Wilson

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Wilson 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
Yellow WarblerParulidae822024-4%1981
American RobinTurdidae482024-47%1981
Franklin's GullLaridae411994+0%1980
Pine SiskinFringillidae402024-51%1981
Warbling VireoVireonidae312024-34%1981
Song SparrowPasserellidae252024+124%1981
Broad-tailed HummingbirdTrochilidae23202414×1981
Chipping SparrowPasserellidae152024+79%1981
Northern House WrenTroglodytidae152024+9%1981
Willow FlycatcherTyrannidae142024+60%1982
American White PelicanPelecanidae131994-24%1993
Western Wood-PeweeTyrannidae122024-15%1981
MacGillivray's WarblerParulidae122024+87%1982
Dusky FlycatcherTyrannidae112024+189%1981
Black-headed GrosbeakCardinalidae112024+57%1981
Swainson's ThrushTurdidae112024+138%1982
Black-billed MagpieCorvidae102024-37%1981
Cedar WaxwingBombycillidae102024+144%1981
Ruby-crowned KingletRegulidae102024-21%1981
California GullLaridae101985+150%1982
MallardAnatidae92022+125%1981
Red-winged BlackbirdIcteridae82024-36%1981
Bank SwallowHirundinidae81983-67%1980
Violet-green SwallowHirundinidae82024+200%1989
Brewer's BlackbirdIcteridae72024-75%1981
Cliff SwallowHirundinidae72024-36%1981
Black-capped ChickadeeParidae72024+267%1981
Evening GrosbeakFringillidae71983+320%1981
Brown-headed CowbirdIcteridae62024-11%1981
Fox SparrowPasserellidae62024+138%1985
Green-tailed TowheePasserellidae62024+44%1981
Western TanagerCardinalidae62024+0%1981
Tree SwallowHirundinidae62024-89%1981
Gray CatbirdMimidae62024+171%1982
Common GoldeneyeAnatidae61980n/an/a
Mountain ChickadeeParidae62024+180%1985
OspreyPandionidae52024+0%1981
American GoldfinchFringillidae52024+175%1983
American CrowCorvidae52024-15%1987
Lincoln's SparrowPasserellidae52024+833%1988

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