BirdAnalyst
BBS Route · Utah · BCR 16

Book Ridge Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 73 species recorded across 13 survey years, still active.

73Species 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 →
13Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2003–2025Span
3Observers

Bird Species Found on Utah Book Ridge

Top 40 of 73 species by most recent count. Each links to its species trend.

Species recorded on the Book Ridge 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
Spotted TowheePasserellidae112025-54%2006
MacGillivray's WarblerParulidae92006+80%2003
Mountain BluebirdTurdidae92023-19%2006
Common RavenCorvidae62025-89%2006
Song SparrowPasserellidae62006+100%2003
Hermit ThrushTurdidae62006+500%2003
Black-capped ChickadeeParidae52013+217%2004
Blue-gray GnatcatcherPolioptilidae52025-7%2006
Tree SwallowHirundinidae52021n/an/a
Woodhouse's Scrub-JayCorvidae42024-33%2006
Cassin's FinchFringillidae42006-20%2003
Green-tailed TowheePasserellidae42024-74%2006
Violet-green SwallowHirundinidae42025-81%2006
Yellow-breasted ChatIcteriidae42025+19%2006
Western MeadowlarkIcteridae42023-43%2016
House FinchFringillidae42022-29%2016
Eastern KingbirdTyrannidae32006+200%2003
Ash-throated FlycatcherTyrannidae32025-65%2006
Lark SparrowPasserellidae32024-78%2006
Black-throated SparrowPasserellidae32025-56%2006
Northern MockingbirdMimidae32025-68%2006
Rock WrenTroglodytidae32025-9%2006
Golden EagleAccipitridae32025+20%2021
Great Horned OwlStrigidae22006+100%2003
White-throated SwiftApodidae22025-39%2017
Western Wood-PeweeTyrannidae22013+38%2004
Horned LarkAlaudidae22024-89%2006
Pinyon JayCorvidae22025+50%2004
Western TanagerCardinalidae22025-60%2006
Plumbeous VireoVireonidae22023-76%2006
Virginia's WarblerParulidae22025-52%2006
BushtitAegithalidae22025-63%2006
Eurasian Collared-DoveColumbidae22006n/an/a
Black-chinned HummingbirdTrochilidae22023-33%2018
ChukarPhasianidae22025+133%2019
Red-tailed HawkAccipitridae22023+33%2017
Lesser GoldfinchFringillidae22016n/an/a
Black-billed MagpieCorvidae22025+83%2021
House SparrowPasseridae22017n/an/a
Blue GrosbeakCardinalidae22022-75%2019

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