BirdAnalyst
BBS Route · Oklahoma · BCR 21

Mill Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 105 species recorded across 48 survey years, still active.

105Species 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 →
48Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1967–2025Span
7Observers

Bird Species Found on Oklahoma Mill Creek

Top 40 of 105 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
American CrowCorvidae832025+257%1969
Northern CardinalCardinalidae792025+603%1969
Cliff SwallowHirundinidae67202567×1994
DickcisselCardinalidae622025+38%1969
Brown-headed CowbirdIcteridae572025+48%1969
Turkey VultureCathartidae432025+77%1969
Painted BuntingCardinalidae432025+239%1969
Indigo BuntingCardinalidae402025+490%1969
Eastern MeadowlarkIcteridae282025-50%1969
Mourning DoveColumbidae242025+29%1969
Northern BobwhiteOdontophoridae202025-48%1969
Blue-gray GnatcatcherPolioptilidae182025+77%1977
Carolina WrenTroglodytidae152025+310%1970
Black VultureCathartidae142025+780%1973
Scissor-tailed FlycatcherTyrannidae132025-47%1969
Eastern Wood-PeweeTyrannidae122025+23%1970
Lark SparrowPasserellidae122025+50%1969
Summer TanagerCardinalidae122025+143%1973
Canada GooseAnatidae122018n/an/a
Red-bellied WoodpeckerPicidae112025+257%1969
Barn SwallowHirundinidae112018-70%1969
Eastern PhoebeTyrannidae102025+267%1970
White-eyed VireoVireonidae102025+567%1981
Yellow-billed CuckooCuculidae92025+174%1969
Blue JayCorvidae92025+313%1969
Northern MockingbirdMimidae92025+43%1969
Tufted TitmouseParidae92025+272%1970
Blue GrosbeakCardinalidae82025+414%1969
Field SparrowPasserellidae72025-69%1969
Downy WoodpeckerPicidae72025+125%1972
Great Blue HeronArdeidae62025+25%1977
Northern ParulaParulidae62025-18%2010
Common NighthawkCaprimulgidae52018+83%1969
Barred OwlStrigidae52017+120%1989
Pied-billed GrebePodicipedidae41968n/an/a
Bell's VireoVireonidae42025-22%1972
Red-eyed VireoVireonidae42025+333%1975
Western Cattle-EgretArdeidae42014-13%2003
Eurasian Collared-DoveColumbidae42025+25%2013
Chimney SwiftApodidae32018-14%1971

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