BirdAnalyst
BBS Route · Arizona · BCR 34

Clay Spring Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 83 species recorded across 25 survey years, still active.

83Species 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 →
1988–2025Span
5Observers

Bird Species Found on Arizona Clay Spring

Top 40 of 83 species by most recent count. Each links to its species trend.

Species recorded on the Clay Spring 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
Horned LarkAlaudidae502025+67%1990
Ash-throated FlycatcherTyrannidae322025+135%1992
Mourning DoveColumbidae232025+115%1990
House FinchFringillidae192025+421%1992
Common RavenCorvidae152025+132%1990
Northern MockingbirdMimidae152025-1%1990
Turkey VultureCathartidae132025+250%1996
Chipping SparrowPasserellidae122025+10%1992
Lark SparrowPasserellidae102025+34%1990
Western MeadowlarkIcteridae92025-42%1990
BushtitAegithalidae92025-32%1992
Red-winged BlackbirdIcteridae82012+567%2006
Cassin's KingbirdTyrannidae72025+170%2004
Black-throated SparrowPasserellidae62025+50%2011
Red-tailed HawkAccipitridae62025+160%1993
House SparrowPasseridae62025+31%2011
Vesper SparrowPasserellidae52021-71%1990
Violet-green SwallowHirundinidae52009+400%1988
Eurasian Collared-DoveColumbidae52025+220%2011
Mexican DuckAnatidae52024+400%2022
Pinyon JayCorvidae42025-91%1992
Hepatic TanagerCardinalidae42024n/an/a
Juniper TitmouseParidae32025-40%1990
American CrowCorvidae32014-75%1996
KilldeerCharadriidae32024+14%1996
Rock WrenTroglodytidae32025+133%2013
Black-chinned HummingbirdTrochilidae32025+20%2012
Gray FlycatcherTyrannidae32024+33%2013
Say's PhoebeTyrannidae22025+25%1993
Woodhouse's Scrub-JayCorvidae22025-77%1990
Spotted TowheePasserellidae22024-40%1993
Bendire's ThrasherMimidae22014+33%1993
Scott's OrioleIcteridae22025+14%2009
Mountain ChickadeeParidae21990n/an/a
Mountain BluebirdTurdidae22025-14%1995
Lesser GoldfinchFringillidae22025+0%2007
Barn SwallowHirundinidae22025+38%2009
Dusky FlycatcherTyrannidae22009n/an/a
Canyon TowheePasserellidae22025+50%2019
PhainopeplaPtiliogonatidae22022n/an/a

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