BirdAnalyst
BBS Route · Oklahoma · BCR 21

Mill Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 104 species recorded across 47 survey years, still active.

104Species 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 →
47Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2018Span
6Observers

Bird Species Found on Oklahoma Mill Creek

Top 40 of 104 species by most recent count. Each links to its species trend.

Species recorded on the Mill Creek 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 CardinalCardinalidae752018+528%1969
Cliff SwallowHirundinidae69201851×1994
American CrowCorvidae682018+234%1969
DickcisselCardinalidae472018+46%1969
Tufted TitmouseParidae462018+307%1970
Northern MockingbirdMimidae382018+91%1969
Brown-headed CowbirdIcteridae342018+17%1969
Eastern BluebirdTurdidae322018+211%1969
Black VultureCathartidae252018+800%1973
Turkey VultureCathartidae242018+102%1969
Yellow-billed CuckooCuculidae202018+326%1969
Eastern MeadowlarkIcteridae182018-44%1969
Northern BobwhiteOdontophoridae152018-37%1969
Painted BuntingCardinalidae152018+139%1969
Lark SparrowPasserellidae132018+121%1969
Blue GrosbeakCardinalidae132018+371%1969
Mourning DoveColumbidae122018+33%1969
Carolina WrenTroglodytidae122018+210%1970
Canada GooseAnatidae122018n/an/a
Red-bellied WoodpeckerPicidae112018+300%1969
European StarlingSturnidae112018+133%1969
Barn SwallowHirundinidae112018-70%1969
Great Crested FlycatcherTyrannidae102018+58%1970
Blue JayCorvidae102018+288%1969
Field SparrowPasserellidae102018-61%1969
Indigo BuntingCardinalidae92018+110%1969
Carolina ChickadeeParidae92017-5%1971
Bewick's WrenTroglodytidae82018+189%1972
Scissor-tailed FlycatcherTyrannidae72018-40%1969
Downy WoodpeckerPicidae72017+113%1972
White-eyed VireoVireonidae72018+367%1981
Common NighthawkCaprimulgidae52018+83%1969
Barred OwlStrigidae52017+120%1989
Pied-billed GrebePodicipedidae41968n/an/a
Eastern PhoebeTyrannidae42018+250%1970
Grasshopper SparrowPasserellidae42017-30%1972
Red-eyed VireoVireonidae42017+267%1975
Western Cattle-EgretArdeidae42014-13%2003
Mississippi KiteAccipitridae42018+50%2008
Chimney SwiftApodidae32018-14%1971

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