BBS Route · Nebraska · BCR 18

Agate Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 70 species recorded across 32 survey years, no longer active.

70Species Recorded
32Years Surveyed
19672001Span
5Observers

Bird Species Found on Nebraska Agate

Top 40 of 70 species by most recent count. Each links to its species trend.

Species recorded on the Agate route.
History
Lark BuntingPasserellidae2042001+58%1969
Western MeadowlarkIcteridae1812001+3%1969
Horned LarkAlaudidae1342001-2%1969
Mourning DoveColumbidae352001+99%1969
Grasshopper SparrowPasserellidae342001+105%1969
Cliff SwallowHirundinidae272001-81%1969
Thick-billed LongspurCalcariidae171999+425%1995
European StarlingSturnidae152001+109%1969
Lark SparrowPasserellidae152001+617%1969
Red-winged BlackbirdIcteridae142001+325%1969
House FinchFringillidae131985n/an/a
Chestnut-collared LongspurCalcariidae122001-21%1969
Barn SwallowHirundinidae122001+120%1971
Western KingbirdTyrannidae102001+62%1972
Common GrackleIcteridae102001+400%1972
Eastern KingbirdTyrannidae62001+0%1969
Long-billed CurlewScolopacidae62001+171%1972
Rock PigeonColumbidae52000+150%1983
KilldeerCharadriidae41999-8%1970
Common YellowthroatParulidae42001+133%1974
Northern Rough-winged SwallowHirundinidae42001-55%1971
Say's PhoebeTyrannidae42001+60%1971
Chipping SparrowPasserellidae41990n/an/a
Loggerhead ShrikeLaniidae32001+71%1970
Yellow WarblerParulidae32001+67%1973
Rock WrenTroglodytidae32001+50%1969
MallardAnatidae21997+100%1967
Upland SandpiperScolopacidae22001+163%1969
Ring-necked PheasantPhasianidae22000+0%1969
House SparrowPasseridae21995+167%1970
American RobinTurdidae22001+14%1972
Common NighthawkCaprimulgidae22001-20%1971
Northern House WrenTroglodytidae21999+50%1970
Northern HarrierAccipitridae22001+200%1971
Brown-headed CowbirdIcteridae22001-29%1973
American KestrelFalconidae22001+100%1977
Cassin's SparrowPasserellidae21974n/an/a
Bullock's OrioleIcteridae21999-25%1982
Orchard OrioleIcteridae21999+50%1992
Brewer's BlackbirdIcteridae22001-87%1991

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