BirdAnalyst
BBS Route · Arizona · BCR 16

Castle Butte Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 41 species recorded across 8 survey years, still active.

41Species 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 →
8Years 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
4Observers

Bird Species Found on Arizona Castle Butte

Top 40 of 41 species by most recent count. Each links to its species trend.

Species recorded on the Castle Butte 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 LarkAlaudidae532025+13%1994
Pinyon JayCorvidae202025+10%1994
Common RavenCorvidae172025-15%1994
Lark SparrowPasserellidae172025+28%1994
House SparrowPasseridae172025+140%1994
House FinchFringillidae112006+50%1993
Eurasian Collared-DoveColumbidae102025+400%2006
Mourning DoveColumbidae92025-47%1994
Cassin's KingbirdTyrannidae92025-15%1994
BushtitAegithalidae61993n/an/a
Northern MockingbirdMimidae52025-13%1994
Ash-throated FlycatcherTyrannidae52007+12%1995
Barn SwallowHirundinidae42006+300%1995
Vesper SparrowPasserellidae31994-25%1992
Prairie FalconFalconidae32007+25%1994
Sage ThrasherMimidae32007+200%1994
Turkey VultureCathartidae32006+200%1995
Burrowing OwlStrigidae32006+200%2005
Loggerhead ShrikeLaniidae22007+133%1994
Woodhouse's Scrub-JayCorvidae22005+100%1994
Golden EagleAccipitridae22006+100%1995
Rock PigeonColumbidae22025-82%2005
American KestrelFalconidae12025+17%1993
Hairy WoodpeckerPicidae11992n/an/a
Say's PhoebeTyrannidae12025-61%1994
European StarlingSturnidae12006+50%1994
Brown-headed CowbirdIcteridae11992n/an/a
Western MeadowlarkIcteridae12025-20%1994
Rock WrenTroglodytidae12025-25%1995
Mountain BluebirdTurdidae12007-86%1992
Western BluebirdTurdidae12025+0%1993
Red-tailed HawkAccipitridae11994n/an/a
Common NighthawkCaprimulgidae11995-50%1994
Western KingbirdTyrannidae12025+0%1994
Northern Rough-winged SwallowHirundinidae12006-50%1994
White-throated SwiftApodidae12006-90%1995
Western Wood-PeweeTyrannidae12005-50%1995
Scott's OrioleIcteridae12005-50%1995
Bullock's OrioleIcteridae11995n/an/a
Great-tailed GrackleIcteridae11995n/an/a

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