BBS Route · Nevada · BCR 9

Humboldt Nf Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 86 species recorded across 12 survey years, no longer active.

Bird Species Found on Nevada Humboldt Nf

Top 40 of 86 species by most recent count. Each links to its species trend.

Species recorded on the Humboldt Nf 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
Vesper SparrowPasserellidae532019+43%2005
Western MeadowlarkIcteridae402019+68%2005
Green-tailed TowheePasserellidae352019+73%2005
American RobinTurdidae202019-7%2005
Brewer's SparrowPasserellidae192019-21%2005
Yellow WarblerParulidae182019+61%2005
Sage ThrasherMimidae172019+35%2005
Spotted TowheePasserellidae142019+29%2013
Brewer's BlackbirdIcteridae122019+20%2005
Black-billed MagpieCorvidae82019+67%2005
Warbling VireoVireonidae82019-19%2005
Mourning DoveColumbidae72019+85%2005
Song SparrowPasserellidae72019+0%2005
Dusky FlycatcherTyrannidae71994n/an/a
Red-winged BlackbirdIcteridae62019+10%2005
ChukarPhasianidae62018+36%2012
White-throated SwiftApodidae62006n/an/a
European StarlingSturnidae52006-50%1993
Northern Rough-winged SwallowHirundinidae51994+150%1993
Black-throated Gray WarblerParulidae52015+20%2005
Rock WrenTroglodytidae52019-28%2005
BushtitAegithalidae52006-58%2005
Golden EagleAccipitridae42018+75%2005
Common RavenCorvidae42019-47%2005
Fox SparrowPasserellidae42019-27%2006
Chipping SparrowPasserellidae42019-33%2006
Red-naped SapsuckerPicidae32015+25%2005
Gray FlycatcherTyrannidae32019+0%2007
Brown-headed CowbirdIcteridae32019+33%1994
Cliff SwallowHirundinidae32015-29%2006
Yellow-breasted ChatIcteriidae32019-45%2006
Black-headed GrosbeakCardinalidae32019+13%2007
Wilson's SnipeScolopacidae32015-29%2012
Western TanagerCardinalidae32007+50%2006
MallardAnatidae32015-25%2007
CanvasbackAnatidae21993n/an/a
Red-tailed HawkAccipitridae22018-69%2006
Swainson's HawkAccipitridae22014+100%1993
American KestrelFalconidae22018-44%2006
Common NighthawkCaprimulgidae22019-30%2013

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