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Wa'atch River Valley
Illustrated Checklist
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Native and Naturalized (236)
Hybrids (4)
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by John F. Gatchet on 14 Dec 2016
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Kyle Leader on 30 Dec 2023
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by John F. Gatchet on 27 Oct 2015
- Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescensLast observed by Sue Nattinger on 6 Jan 2017
Additional Taxa (49)
- Cackling/Canada Goose Branta hutchinsii/canadensisLast observed by Adrianne Akmajian on 23 Mar 2019
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Brandon Caswell on 1 Aug 2017
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Eric Heisey on 4 Sep 2022
- Western/Glaucous-winged Gull Larus occidentalis/glaucescensLast observed by Liam Hutcheson on 17 Dec 2023
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Jason Vassallo on 12 May 2023
- Cooper's Hawk/American Goshawk Accipiter cooperii/atricapillusLast observed by Nigel Ball on 18 Aug 2013
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Denny Van Horn on 12 May 2018
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Roger Hoffman on 7 Sep 2022
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Bob Schmidt on 21 Oct 2018
- Black-throated Gray/Townsend's Warbler Setophaga nigrescens/townsendiLast observed by Scott Atkinson on 14 May 2022