BirdAnalyst
BBS Route · Wyoming · BCR 17

Sussex Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 26 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1991–2025Span
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
Cliff SwallowHirundinidae1162025-46%1994
Western MeadowlarkIcteridae1132025+1%1994
Horned LarkAlaudidae592025+4%1994
Red-winged BlackbirdIcteridae332025-62%1994
Lark BuntingPasserellidae332025+13%1994
European StarlingSturnidae272025-49%1994
Mourning DoveColumbidae262025-29%1994
Eurasian Collared-DoveColumbidae122025+82%2019
Sandhill CraneGruidae92025+70%1997
Bullock's OrioleIcteridae92025+171%1995
Lark SparrowPasserellidae82025-37%1994
Tree SwallowHirundinidae82025+200%2015
Brown-headed CowbirdIcteridae72025-86%1995
Brewer's BlackbirdIcteridae72025-97%1994
Brewer's SparrowPasserellidae72025+25%1995
Northern ShovelerAnatidae72024+71%2008
American KestrelFalconidae62025-53%1994
Common GrackleIcteridae62025+30%1995
Barn SwallowHirundinidae62025-11%1994
Mountain PloverCharadriidae62006n/an/a
American White PelicanPelecanidae62018+200%2017
Common NighthawkCaprimulgidae52024+9%1994
Eastern KingbirdTyrannidae52025+27%1994
Greater Sage-GrousePhasianidae52016+400%2006
KilldeerCharadriidae42025-64%1994
Red-tailed HawkAccipitridae42025+30%1994
Yellow WarblerParulidae42025+11%1998
Northern HarrierAccipitridae42016+133%2008
Say's PhoebeTyrannidae42025+175%1995
Western Wood-PeweeTyrannidae42025+133%2006
Northern MockingbirdMimidae42025+150%2011
Short-eared OwlStrigidae32012+25%1996
Western KingbirdTyrannidae32025-67%1994
Loggerhead ShrikeLaniidae32025+50%1994
Sage ThrasherMimidae32025+25%2006
Canada GooseAnatidae32016+200%2009
Turkey VultureCathartidae32025+60%2013
MallardAnatidae22024-71%1995
Ring-necked PheasantPhasianidae22018-17%1994
Mountain BluebirdTurdidae22019-50%1995

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