BirdAnalyst
BBS Route · Texas · BCR 35

Marfa Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 60 species recorded across 19 survey years, still active.

60Species 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 →
19Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2004–2025Span
3Observers

Bird Species Found on Texas Marfa

Top 40 of 60 species by most recent count. Each links to its species trend.

Species recorded on the Marfa 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
Northern MockingbirdMimidae822025-3%2006
Chihuahuan MeadowlarkIcteridae472025+34%2006
Mourning DoveColumbidae412025+259%2006
Black-throated SparrowPasserellidae332025+92%2006
Scaled QuailOdontophoridae302025-13%2006
Cassin's SparrowPasserellidae242025+117%2006
Cassin's KingbirdTyrannidae162025+37%2006
Ash-throated FlycatcherTyrannidae132025+300%2006
Rufous-crowned SparrowPasserellidae102025+340%2011
Common NighthawkCaprimulgidae92025+6%2006
House FinchFringillidae72025+18%2006
Chihuahuan RavenCorvidae62019+975%2006
Scott's OrioleIcteridae62025-13%2006
Lark SparrowPasserellidae62025-46%2006
Cactus WrenTroglodytidae62025+83%2006
PhainopeplaPtiliogonatidae62024+500%2006
Black-chinned SparrowPasserellidae62025+200%2023
Turkey VultureCathartidae52025-22%2006
Western KingbirdTyrannidae52024+44%2012
Horned LarkAlaudidae42017+0%2009
Burrowing OwlStrigidae42023-10%2017
BushtitAegithalidae42025+300%2021
Canyon TowheePasserellidae32025-56%2006
Curve-billed ThrasherMimidae32025+200%2009
Blue GrosbeakCardinalidae22025+50%2006
Loggerhead ShrikeLaniidae22025+0%2006
Montezuma QuailOdontophoridae22023+0%2009
Ladder-backed WoodpeckerPicidae22023+33%2010
Violet-green SwallowHirundinidae22005n/an/a
Black-tailed GnatcatcherPolioptilidae22022+100%2005
Say's PhoebeTyrannidae22025+33%2010
Western Wood-PeweeTyrannidae22022-25%2011
Lesser GoldfinchFringillidae22016-44%2012
Grasshopper SparrowPasserellidae22023-20%2011
Cave SwallowHirundinidae22017n/an/a
Common RavenCorvidae22025-17%2021
European StarlingSturnidae22019n/an/a
Bewick's WrenTroglodytidae22024+0%2019
Greater RoadrunnerCuculidae12024+100%2009
Common PoorwillCaprimulgidae12025+0%2016

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