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Rio Grande Valley SP--Calabacillas Arroyo Bosque Trails
Illustrated Checklist
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Native and Naturalized (225)
Exotic: Escapee (3)
Hybrids (2)
- Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diaziLast observed by Mike Andersen on 17 Dec 2023
- Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeliLast observed by Bernard Morris on 9 Aug 2023
Additional Taxa (33)
- Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianumLast observed by Bernard Morris on 18 May 2023
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Sarah Peterson on 27 Sep 2017
- Downy/Ladder-backed Woodpecker Dryobates pubescens/scalarisLast observed by Bernard Morris on 28 Jun 2021
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Anonymous eBirder on 3 May 2019
- Cassin's/Western Kingbird Tyrannus vociferans/verticalisLast observed by Bernard Morris on 21 Aug 2018
- Black-capped/Mountain Chickadee Poecile atricapillus/gambeliLast observed by Bernard Morris on 9 Mar 2024
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Anonymous eBirder on 7 Sep 2015
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by Bernard Morris on 18 Jul 2022