BirdAnalyst
BBS Route · Arizona · BCR 34

Clay Spring Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 82 species recorded across 24 survey years, still active.

82Species 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 →
24Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2024Span
5Observers

Bird Species Found on Arizona Clay Spring

Top 40 of 82 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
Northern MockingbirdMimidae742024+5%1990
Horned LarkAlaudidae632024+84%1990
House FinchFringillidae372024+393%1992
Ash-throated FlycatcherTyrannidae332024+158%1992
Common RavenCorvidae242024+158%1990
Mourning DoveColumbidae222024+127%1990
Lark SparrowPasserellidae172024+42%1990
Chihuahuan MeadowlarkIcteridae112024-8%2010
Western MeadowlarkIcteridae102024-30%1990
Western KingbirdTyrannidae92024+87%1990
Canyon TowheePasserellidae92024+50%2019
Chipping SparrowPasserellidae82024-28%1992
Red-winged BlackbirdIcteridae82012+567%2006
Cassin's KingbirdTyrannidae72024+160%2004
Barn SwallowHirundinidae72024+63%2009
House SparrowPasseridae62024+15%2011
Eurasian Collared-DoveColumbidae62024+160%2011
Vesper SparrowPasserellidae52021-71%1990
Violet-green SwallowHirundinidae52009+400%1988
Turkey VultureCathartidae52024+233%1996
Mexican DuckAnatidae52024+400%2022
Say's PhoebeTyrannidae42024+50%1993
Black-throated SparrowPasserellidae42024+38%2011
Juniper TitmouseParidae42024-32%1990
Hepatic TanagerCardinalidae42024n/an/a
Red-tailed HawkAccipitridae32024+60%1993
American CrowCorvidae32014-75%1996
Scott's OrioleIcteridae32024+0%2009
KilldeerCharadriidae32024+14%1996
Blue-gray GnatcatcherPolioptilidae32012+100%2009
Gray FlycatcherTyrannidae32024+33%2013
Burrowing OwlStrigidae32024-17%2013
Woodhouse's Scrub-JayCorvidae22024-73%1990
Pinyon JayCorvidae22014-92%1992
Spotted TowheePasserellidae22024-40%1993
Bendire's ThrasherMimidae22014+33%1993
Mountain ChickadeeParidae21990n/an/a
Rock WrenTroglodytidae22021+100%2009
Mountain BluebirdTurdidae22024+14%1995
Bullock's OrioleIcteridae22024-73%2010

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.