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Willow Creek Bosque Open Space
Illustrated Checklist
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Native and Naturalized (187)
Hybrids (1)
- Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diaziLast observed by Philip Kline on 28 Jan 2024
Additional Taxa (28)
- Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianumLast observed by Mark Romero on 19 Jul 2023
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Anonymous eBirder on 20 Feb 2020
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Christopher Rustay on 19 Sep 2020
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Nate Gowan on 9 Aug 2023
- Black-capped/Mountain Chickadee Poecile atricapillus/gambeliLast observed by Annie Gross on 1 Jul 2021