BirdAnalyst
BBS Route · Wyoming · BCR 17

Sussex Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 25 survey years, still active.

87Species 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 →
25Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1991–2024Span
4Observers

Bird Species Found on Wyoming Sussex

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the Sussex 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 MeadowlarkIcteridae1582024+1%1994
Cliff SwallowHirundinidae1182024-52%1994
Red-winged BlackbirdIcteridae972024-56%1994
Lark BuntingPasserellidae542024+34%1994
European StarlingSturnidae472024-49%1994
Mourning DoveColumbidae252024-11%1994
Horned LarkAlaudidae212024-23%1994
Brewer's SparrowPasserellidae152024+13%1995
Grasshopper SparrowPasserellidae142024+127%1998
Brown-headed CowbirdIcteridae132024-86%1995
Northern ShovelerAnatidae72024+71%2008
GadwallAnatidae62024-59%1996
Bullock's OrioleIcteridae62024+100%1995
Western Wood-PeweeTyrannidae62024+133%2006
Mountain PloverCharadriidae62006n/an/a
American White PelicanPelecanidae62018+200%2017
Common NighthawkCaprimulgidae52024+9%1994
Loggerhead ShrikeLaniidae52024+50%1994
Sandhill CraneGruidae52024+10%1997
Vesper SparrowPasserellidae52023-49%1996
Greater Sage-GrousePhasianidae52016+400%2006
Northern House WrenTroglodytidae52023+50%2008
American KestrelFalconidae42024-59%1994
Lark SparrowPasserellidae42024-33%1994
Yellow WarblerParulidae42024-22%1998
Northern HarrierAccipitridae42016+133%2008
Upland SandpiperScolopacidae32024+200%1997
Red-tailed HawkAccipitridae32024+10%1994
Short-eared OwlStrigidae32012+25%1996
Eastern KingbirdTyrannidae32024+0%1994
Western KingbirdTyrannidae32024-67%1994
Common GrackleIcteridae32023+20%1995
Tree SwallowHirundinidae32024+50%2015
Northern MockingbirdMimidae32024+75%2011
Canada GooseAnatidae32016+200%2009
Turkey VultureCathartidae32024+60%2013
MallardAnatidae22024-71%1995
Ring-necked PheasantPhasianidae22018-17%1994
Mountain BluebirdTurdidae22019-50%1995
Say's PhoebeTyrannidae22024+150%1995

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