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Bay City Sewage Ponds
Illustrated Checklist
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Native and Naturalized (166)
Hybrids (3)
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Max Smith on 7 Nov 2014
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Michele Ray on 19 Oct 2014
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Eric Konkol on 25 Jun 2022
Additional Taxa (22)
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by J. Micheal Patterson on 9 May 1992
- Western/Glaucous-winged Gull Larus occidentalis/glaucescensLast observed by David de Rivera Tønnessen on 26 Jul 2021