BirdAnalyst
BBS Route · Louisiana · BCR 37

Forked Island Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 13 survey years, still active.

87Species 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 →
13Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2008–2025Span
4Observers

Bird Species Found on Louisiana Forked Island

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the Forked Island 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
White IbisThreskiornithidae4132025+8%2010
Red-winged BlackbirdIcteridae3342025+14%2010
Snowy EgretArdeidae1402025-66%2010
Neotropic CormorantPhalacrocoracidae1032025-82%2010
Boat-tailed GrackleIcteridae822025+24%2010
Common GallinuleRallidae582025+71%2010
Common YellowthroatParulidae522025+52%2010
Tricolored HeronArdeidae412025-72%2010
Orchard OrioleIcteridae412025-30%2010
Cliff SwallowHirundinidae412025+26%2010
Western Cattle-EgretArdeidae382025-67%2010
Northern CardinalCardinalidae382025+30%2010
Barn SwallowHirundinidae372025-55%2010
Least BitternArdeidae342025+200%2010
Mourning DoveColumbidae342025+120%2010
Common GrackleIcteridae332025-36%2011
Northern MockingbirdMimidae252025-17%2010
Purple MartinHirundinidae242025+103%2010
Brown-headed CowbirdIcteridae232025-65%2010
Eastern MeadowlarkIcteridae212025-41%2010
European StarlingSturnidae192025-64%2010
Eastern KingbirdTyrannidae132025-28%2010
Green HeronArdeidae122025+15%2010
Blue JayCorvidae122025+25%2010
Black-bellied Whistling-DuckAnatidae112025-47%2010
Great EgretArdeidae112025-91%2010
Little Blue HeronArdeidae112025-25%2010
KilldeerCharadriidae112025+62%2010
Red-bellied WoodpeckerPicidae112025+0%2010
Fish CrowCorvidae112019+8%2011
Forster's TernLaridae102024+100%2014
Yellow-billed CuckooCuculidae82025+89%2012
Purple GallinuleRallidae72025+300%2014
Common NighthawkCaprimulgidae62025+67%2010
Painted BuntingCardinalidae62025+29%2010
Eurasian Collared-DoveColumbidae62025-33%2010
Indigo BuntingCardinalidae62017-30%2011
House SparrowPasseridae52025-69%2010
White-winged DoveColumbidae42025+33%2019
Mottled DuckAnatidae32024-89%2010

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