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Hansen Dam
Illustrated Checklist
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Native and Naturalized (283)
Exotic: Provisional (5)
Exotic: Escapee (12)
Hybrids (6)
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Kimball Garrett on 13 Jan 2013
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Kimball Garrett on 13 Apr 2018
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Kimball Garrett on 15 Feb 2009
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Kimball Garrett on 7 Mar 2009
- Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruberLast observed by Kimball Garrett on 26 Dec 2016
- Downy x Nuttall's Woodpecker (hybrid) Dryobates pubescens x nuttalliiLast observed by Daniel Tinoco on 13 Sep 2013
Additional Taxa (51)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Ed Stonick on 2 Apr 2018
- Blue-winged/Cinnamon Teal Spatula discors/cyanopteraLast observed by Kimball Garrett on 16 Oct 2018
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Patricia Bates on 23 Oct 2021
- Rufous/Allen's Hummingbird Selasphorus rufus/sasinLast observed by Van Pierszalowski on 21 Apr 2024
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Shawn Goodchild on 27 Oct 2022
- small falcon sp. Falco sp. (small falcon sp.)Last observed by Southwest Bird Study Club on 14 Apr 2008
- large parakeet sp. (former Aratinga sp.) Eupsittula/Aratinga/Thectocercus/Psittacara sp.Last observed by Yvonne Burch-Hartley on 11 Apr 2015
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Michael Long on 19 May 2013
- yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)Last observed by Brad Rumble on 14 Jun 2023
- Sagebrush/Bell's Sparrow (Sage Sparrow) Artemisiospiza nevadensis/belliLast observed by Phyllis Weintraub on 10 Nov 1974
- Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolorLast observed by Kimball Garrett on 27 Apr 2017
- Townsend's/Hermit Warbler Setophaga townsendi/occidentalisLast observed by Kimball Garrett on 5 Sep 2023
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by Kimball Garrett on 25 Jun 2011