BirdAnalyst
BBS Route · Louisiana · BCR 37

Maurice Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 93 species recorded across 31 survey years, still active.

93Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–2024Span
4Observers

Bird Species Found on Louisiana Maurice

Top 40 of 93 species by most recent count. Each links to its species trend.

Species recorded on the Maurice 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 BlackbirdIcteridae2382024-54%1990
Snowy EgretArdeidae1802024-41%1991
Great EgretArdeidae1492024-69%1990
Western Cattle-EgretArdeidae932024-36%1990
Little Blue HeronArdeidae842024+106%1990
Northern CardinalCardinalidae652024-3%1990
Mourning DoveColumbidae592024+82%1990
Northern MockingbirdMimidae502024-57%1990
Wood StorkCiconiidae402019-21%2010
Neotropic CormorantPhalacrocoracidae322024+90%1999
Roseate SpoonbillThreskiornithidae302024-18%1994
Eastern MeadowlarkIcteridae282024-11%1990
Barn SwallowHirundinidae262024+683%1995
White IbisThreskiornithidae232024+97%1991
Carolina WrenTroglodytidae232024+829%1990
Black-necked StiltRecurvirostridae192024-4%1990
KilldeerCharadriidae192024-51%1990
Pied-billed GrebePodicipedidae172024+35%1996
Blue JayCorvidae152024-17%1990
American CrowCorvidae152024+800%1992
European StarlingSturnidae152024-60%1990
Purple MartinHirundinidae132024+356%1990
White-faced IbisThreskiornithidae12202416×1992
House SparrowPasseridae122024-93%1990
Fulvous Whistling-DuckAnatidae112024-74%1990
Eurasian Collared-DoveColumbidae102024+186%2002
Painted BuntingCardinalidae92024-35%1990
Northern BobwhiteOdontophoridae82024-57%1990
Common GrackleIcteridae82024-78%1990
Great Blue HeronArdeidae82024+56%1995
Boat-tailed GrackleIcteridae82024+300%2023
Mottled DuckAnatidae72024-5%1990
Yellow-crowned Night HeronArdeidae72024+767%1993
Red-bellied WoodpeckerPicidae72024+320%1993
Common GallinuleRallidae62024+33%1990
Yellow-billed CuckooCuculidae62024-15%1990
Brown-headed CowbirdIcteridae62024-35%1990
DickcisselCardinalidae52024+0%1990
Wood DuckAnatidae52024+243%2003
Inca DoveColumbidae52024+71%2004

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