BirdAnalyst
BBS Route · Utah · BCR 9

Bear River Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 104 species recorded across 25 survey years, still active.

104Species 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 →
1992–2025Span
5Observers

Bird Species Found on Utah Bear River

Top 40 of 104 species by most recent count. Each links to its species trend.

Species recorded on the Bear River 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 SwallowHirundinidae6682025+33%1994
White-faced IbisThreskiornithidae5032025+160%1994
California GullLaridae1932025-2%1994
Yellow-headed BlackbirdIcteridae1082025-62%1994
Red-winged BlackbirdIcteridae892025+766%1994
American White PelicanPelecanidae702025-83%1994
Canada GooseAnatidae672025+93%1994
European StarlingSturnidae652025+27%1994
Western GrebePodicipedidae442025-12%1996
American CootRallidae432025-79%1996
House SparrowPasseridae422025-60%1994
Sandhill CraneGruidae382025+700%1994
Franklin's GullLaridae362025-90%1994
Clark's GrebePodicipedidae342025-23%2003
KilldeerCharadriidae342025-51%1994
RedheadAnatidae312023-83%1996
GadwallAnatidae302025-35%1994
Ring-billed GullLaridae262025+54%2009
Ring-necked PheasantPhasianidae242025+240%1994
Cinnamon TealAnatidae212025-51%1994
Black-necked StiltRecurvirostridae202025-88%1994
Horned LarkAlaudidae202025+22%1994
Savannah SparrowPasserellidae202025+110%1994
Song SparrowPasserellidae192025+489%2003
Brown-headed CowbirdIcteridae182025-28%1996
Western MeadowlarkIcteridae182025-50%1994
Double-crested CormorantPhalacrocoracidae172025+233%1994
Barn SwallowHirundinidae152025+19%1994
American AvocetRecurvirostridae142025-91%1994
Western KingbirdTyrannidae132025-3%1994
Marsh WrenTroglodytidae122025-39%1994
Forster's TernLaridae112025-50%1994
Bank SwallowHirundinidae111992n/an/a
Ruddy DuckAnatidae102024+50%1997
Snowy EgretArdeidae92025-72%1994
Common RavenCorvidae92025-18%1994
Common YellowthroatParulidae92025+317%1994
MallardAnatidae72025+75%1994
Northern PintailAnatidae72025-79%1994
Wilson's PhalaropeScolopacidae72025-80%1994

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