BirdAnalyst
BBS Route · Arizona · BCR 16

Round Rock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 60 species recorded across 7 survey years, no longer active.

60Species 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 →
7Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–1989Span
4Observers

Bird Species Found on Arizona Round Rock

Top 40 of 60 species by most recent count. Each links to its species trend.

Species recorded on the Round Rock 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 LarkAlaudidae311989-29%1970
Western MeadowlarkIcteridae221989+383%1970
Common RavenCorvidae191989-72%1970
Northern MockingbirdMimidae121989+67%1971
Mountain BluebirdTurdidae111976+200%1971
Rock WrenTroglodytidae101989+200%1970
White-throated SwiftApodidae91976+125%1968
Mourning DoveColumbidae81989+44%1970
Sage ThrasherMimidae81989+208%1970
Sagebrush SparrowPasserellidae71989-61%1970
American CrowCorvidae61971+100%1968
Brewer's BlackbirdIcteridae61989-13%1971
Lark SparrowPasserellidae61976+75%1970
House FinchFringillidae61989+30%1971
Spotted TowheePasserellidae51972+400%1969
Say's PhoebeTyrannidae41989+300%1968
Violet-green SwallowHirundinidae41976-65%1970
Vesper SparrowPasserellidae41989+8%1971
American KestrelFalconidae31976+167%1969
European StarlingSturnidae31972-50%1969
American RobinTurdidae31972+33%1969
Pinyon JayCorvidae31989-37%1971
Red-breasted NuthatchSittidae31970n/an/a
Mountain ChickadeeParidae31972+0%1970
Northern Rough-winged SwallowHirundinidae31972n/an/a
Common NighthawkCaprimulgidae21968n/an/a
Western BluebirdTurdidae21989-50%1970
House SparrowPasseridae21989+200%1970
Ash-throated FlycatcherTyrannidae21972-33%1970
Woodhouse's Scrub-JayCorvidae21970n/an/a
Clark's NutcrackerCorvidae21970n/an/a
Western TanagerCardinalidae21976+100%1970
Grasshopper SparrowPasserellidae21971n/an/a
Blue-gray GnatcatcherPolioptilidae21976n/an/a
Bendire's ThrasherMimidae21989n/an/a
Bewick's WrenTroglodytidae21989n/an/a
KilldeerCharadriidae11969+0%1968
Turkey VultureCathartidae11976+0%1968
Lewis's WoodpeckerPicidae11976-27%1970
Red-winged BlackbirdIcteridae11971-63%1969

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