BirdAnalyst
BBS Route · Texas · BCR 21

Megargel Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 82 species recorded across 17 survey years, still active.

82Species 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 →
17Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
5Observers

Bird Species Found on Texas Megargel

Top 40 of 82 species by most recent count. Each links to its species trend.

Species recorded on the Megargel 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
DickcisselCardinalidae552025+8%1997
Scissor-tailed FlycatcherTyrannidae362025-13%1996
Mourning DoveColumbidae322025-66%1996
Northern CardinalCardinalidae272025-27%1996
Northern MockingbirdMimidae252025-62%1996
Turkey VultureCathartidae182025-13%1996
Cliff SwallowHirundinidae172024+78%2009
Painted BuntingCardinalidae16202516×1996
Northern BobwhiteOdontophoridae152025-86%1996
Cassin's SparrowPasserellidae142025-23%1996
Red-winged BlackbirdIcteridae122025-71%1996
American CrowCorvidae112025-35%1996
Great-tailed GrackleIcteridae112025-55%1996
Eastern MeadowlarkIcteridae102025-88%1996
Bullock's OrioleIcteridae92025+111%1996
House SparrowPasseridae92025-27%1996
Brown-headed CowbirdIcteridae82025-48%1996
Lark SparrowPasserellidae82025-18%1996
Yellow-billed CuckooCuculidae62025-62%1996
Black-crested TitmouseParidae62025+71%2015
Ash-throated FlycatcherTyrannidae52025+114%1996
European StarlingSturnidae52023-96%1996
Mississippi KiteAccipitridae52025+60%2009
Wild TurkeyPhasianidae52024+67%2009
Indigo BuntingCardinalidae52024+150%2005
Eurasian Collared-DoveColumbidae52025+333%2018
Red-bellied WoodpeckerPicidae52025+400%2015
Northern Rough-winged SwallowHirundinidae41994n/an/a
House FinchFringillidae42024+200%2018
Western Cattle-EgretArdeidae32025+738%1997
KilldeerCharadriidae32025-40%1996
Common NighthawkCaprimulgidae32024-51%1996
Chimney SwiftApodidae32024+0%1997
Horned LarkAlaudidae32023-33%1995
Purple MartinHirundinidae32025-29%1997
Loggerhead ShrikeLaniidae32025-86%1996
Curve-billed ThrasherMimidae32022+20%1996
Eastern BluebirdTurdidae32025-42%1996
Great Blue HeronArdeidae22025+200%1997
Ladder-backed WoodpeckerPicidae22025-13%1996

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