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Mercer
Illustrated Checklist
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Native and Naturalized (286)
Exotic: Escapee (5)
Hybrids (6)
- Graylag x Swan Goose (hybrid) Anser anser x cygnoidesLast observed by MiMi Hoffmaster 🦩👀👂 on 22 Mar 2022
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Michael Williams on 7 Mar 2021
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Scott Kinzey on 1 Jun 2009
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Glenn Koppel on 17 Mar 2019
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Margaret Higbee on 27 Mar 2017
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Kim Springer on 18 Aug 2023
Additional Taxa (36)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Jeff Brinker on 10 Jun 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Malcolm Kurtz on 22 Aug 2022
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Carolyn Arnsberger on 11 Nov 2021
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Sue Ann herald on 23 Jul 2023
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Jamie Sunderland on 1 Mar 2016
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Kim Garrett on 5 Aug 2023