BirdAnalyst
BBS Route · Utah · BCR 16

Altonah Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 115 species recorded across 29 survey years, still active.

115Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
11Observers

Bird Species Found on Utah Altonah

Top 40 of 115 species by most recent count. Each links to its species trend.

Species recorded on the Altonah 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 SwallowHirundinidae1592025+240%1993
Green-tailed TowheePasserellidae582025+157%1970
Brewer's SparrowPasserellidae562025-2%1971
Grasshopper SparrowPasserellidae521993n/an/a
Vesper SparrowPasserellidae342025+56%1978
Black-billed MagpieCorvidae272025+148%1971
Mourning DoveColumbidae242025-37%1971
Spotted TowheePasserellidae232025+475%1977
Sage ThrasherMimidae152025+162%1972
Brewer's BlackbirdIcteridae142015-75%1972
Canyon WrenTroglodytidae121969n/an/a
Blue-gray GnatcatcherPolioptilidae102025+220%2005
Red-winged BlackbirdIcteridae92025-19%1971
Northern Rough-winged SwallowHirundinidae92015+80%1979
Lark SparrowPasserellidae92025+71%1981
Gray VireoVireonidae81969n/an/a
Mountain BluebirdTurdidae72025-61%1970
American RobinTurdidae72025-39%1971
Common RavenCorvidae72025+183%1978
Yellow WarblerParulidae72025+175%1978
Rock PigeonColumbidae71982-46%1979
American CrowCorvidae61997+33%1979
Clark's NutcrackerCorvidae62015+22%1978
Western MeadowlarkIcteridae62025+125%1972
Tree SwallowHirundinidae62015+14%1978
Warbling VireoVireonidae62007+117%1978
Cedar WaxwingBombycillidae62007+200%2001
Song SparrowPasserellidae52025-18%1999
Barn SwallowHirundinidae52015+171%1978
Northern House WrenTroglodytidae42015-14%1992
Red-tailed HawkAccipitridae42015+200%1979
Golden EagleAccipitridae42025+75%1977
Swainson's ThrushTurdidae42025+14%2001
House SparrowPasseridae41981-20%1977
Ring-necked PheasantPhasianidae42025-9%1980
American KestrelFalconidae32025-9%1970
Virginia's WarblerParulidae32025-89%2001
Canada JayCorvidae31979-25%1970
White-throated SwiftApodidae31978+0%1971
Sagebrush SparrowPasserellidae32004-22%1975

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