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Berkeley
Illustrated Checklist
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Native and Naturalized (290)
Exotic: Escapee (4)
Hybrids (2)
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Tom Austin on 16 Dec 2015
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Tom Austin on 24 Sep 2016
Additional Taxa (60)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by david perry on 1 Jan 2018
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Kristin Threet on 1 Nov 2020
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Keith McCullough on 2 Oct 2021
- Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandriLast observed by John Harper on 8 Jan 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Jean-Guy Papineau on 19 Mar 2005
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Andy Harrison on 13 Apr 2024
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Carl Bussells on 4 Nov 2023
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Elizabeth Anderegg on 26 Sep 2022
- Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalusLast observed by Richard Hahn on 17 Feb 2018
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Brad Sale on 29 Aug 2023
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by bob dellinger on 24 Oct 2023
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by State Historical Data on 12 Oct 1986