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Richmond CA (formerly Richmond Sewage Lagoons)
Illustrated Checklist
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Native and Naturalized (231)
Hybrids (2)
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Tom K on 3 Oct 2022
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Peter Blancher on 17 Sep 2023
Additional Taxa (45)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Anonymous eBirder on 7 Oct 2022
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Jennifer Bordeleau on 2 Jun 2021
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Derek Dunnett on 22 Apr 2023
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Derek Dunnett on 5 Jun 2021
- Black-bellied Plover/golden-plover sp. Pluvialis sp.Last observed by Anonymous eBirder on 26 May 2021
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Marcie Jacklin on 28 Jul 1990
- Downy/Hairy Woodpecker Dryobates pubescens/villosusLast observed by jason from Ontario on 25 Feb 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Maureen Mark on 31 May 2022
- Bohemian/Cedar Waxwing Bombycilla garrulus/cedrorumLast observed by jason from Ontario on 25 Feb 2024
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Mario Botros on 25 Apr 2014
- White-crowned/White-throated Sparrow Zonotrichia leucophrys/albicollisLast observed by Peter Blancher on 18 May 2013