BirdAnalyst
BBS Route · Oklahoma · BCR 19

Beaver Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 73 species recorded across 29 survey years, still active.

73Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1979–2018Span
5Observers

Bird Species Found on Oklahoma Beaver

Top 40 of 73 species by most recent count. Each links to its species trend.

Species recorded on the Beaver 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
Bank SwallowHirundinidae972200798×2000
Cliff SwallowHirundinidae6532018+77%1982
Western MeadowlarkIcteridae1302018+14%1981
Mourning DoveColumbidae882018-5%1981
Red-winged BlackbirdIcteridae572018+78%1981
Barn SwallowHirundinidae382018-52%1981
Common NighthawkCaprimulgidae352018+2%1981
Horned LarkAlaudidae352018-14%1981
House SparrowPasseridae342018-76%1981
Grasshopper SparrowPasserellidae252018+162%1981
Northern BobwhiteOdontophoridae222018+21%1982
Lark SparrowPasserellidae222018+1%1981
European StarlingSturnidae222018+157%1983
Cassin's SparrowPasserellidae202018-2%1981
KilldeerCharadriidae192018+5%1981
DickcisselCardinalidae192018+65%1981
Northern PintailAnatidae171993-14%1989
Northern MockingbirdMimidae162018-15%1981
House FinchFringillidae13200313×1997
Brown-headed CowbirdIcteridae122018+15%1981
Eastern MeadowlarkIcteridae122018+511%1982
Common GrackleIcteridae102018+92%1982
Brewer's BlackbirdIcteridae101981n/an/a
Eurasian Collared-DoveColumbidae102018+100%2013
Western KingbirdTyrannidae72018-49%1981
Red-headed WoodpeckerPicidae72018+150%1983
Ring-necked PheasantPhasianidae62018-31%1981
Scissor-tailed FlycatcherTyrannidae62018+58%1981
Say's PhoebeTyrannidae62018+167%1987
Orchard OrioleIcteridae52018+100%1988
Scaled QuailOdontophoridae52018-56%1987
Turkey VultureCathartidae52018+160%2003
Blue-winged TealAnatidae41993-55%1986
Red-tailed HawkAccipitridae32018+167%1994
Blue JayCorvidae32013+167%1984
Common YellowthroatParulidae32004+200%1989
Chimney SwiftApodidae32003n/an/a
MallardAnatidae22018-83%1983
American AvocetRecurvirostridae22018+50%1987
Rock PigeonColumbidae22018+50%1985

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