BBS Route · Wyoming · BCR 10

Harmony Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 114 species recorded across 19 survey years, still active.

Bird Species Found on Wyoming Harmony

Top 40 of 114 species by most recent count. Each links to its species trend.

Species recorded on the Harmony 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
Red-winged BlackbirdIcteridae1012025+28%1987
Horned LarkAlaudidae842025-45%1987
Cliff SwallowHirundinidae362025+35%1987
Brewer's BlackbirdIcteridae272025-61%1987
Canada GooseAnatidae272023+98%2007
House SparrowPasseridae272025+44%2006
Western MeadowlarkIcteridae252025-27%1987
Rock PigeonColumbidae252023-14%2008
Wild TurkeyPhasianidae232017n/an/a
Thick-billed LongspurCalcariidae172025-26%1989
Tree SwallowHirundinidae172025+763%1989
Common RavenCorvidae16202517×1989
Vesper SparrowPasserellidae152025+81%1988
MallardAnatidae132025-58%1987
Yellow-headed BlackbirdIcteridae132025-2%1988
Eared GrebePodicipedidae132022n/an/a
Green-winged TealAnatidae122022+111%1988
Ring-billed GullLaridae12202212×1987
Savannah SparrowPasserellidae112025+121%1989
Clay-colored SparrowPasserellidae111987n/an/a
Field SparrowPasserellidae111987n/an/a
Sagebrush SparrowPasserellidae101980n/an/a
Bank SwallowHirundinidae101989n/an/a
Brewer's SparrowPasserellidae92025-4%1987
Black-billed MagpieCorvidae92025+183%2013
GadwallAnatidae82022+7%1988
Swainson's HawkAccipitridae82023+111%1988
Bald EagleAccipitridae82025+9%2021
California GullLaridae72022-38%1987
American RobinTurdidae72025-45%1987
Wilson's SnipeScolopacidae72025+56%1989
Mountain BluebirdTurdidae62025+125%1987
Double-crested CormorantPhalacrocoracidae62014-59%1990
Yellow WarblerParulidae62025-28%1989
Lark SparrowPasserellidae62008+500%1987
Black-crowned Night HeronArdeidae61988n/an/a
American CootRallidae62014+50%1989
Common TernLaridae51980n/an/a
Golden EagleAccipitridae52022+167%2012
Common GrackleIcteridae52025-59%2007

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