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Grand Isle--Exxon fields
Illustrated Checklist
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Native and Naturalized (248)
Hybrids (3)
- Mallard x Mottled Duck (hybrid) Anas platyrhynchos x fulvigulaLast observed by David Muth on 20 Oct 2022
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Nick Ramsey on 17 Apr 2021
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by David Muth on 16 Apr 2023
Additional Taxa (30)
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Esme Rosen on 30 Apr 2024
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Stephanie Wallace on 24 Apr 2021
- Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianumLast observed by David Booth on 1 Jun 2021
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Tina DeRouen on 2 Oct 2022
- yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)Last observed by Michael Harvey on 15 Nov 2014
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Markey Barre on 19 Apr 2017
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by Nick Ramsey on 15 Apr 2023