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葛飾区--水元公園 (Katsushika Ward--Mizumoto Park)
Illustrated Checklist
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Native and Naturalized (139)
Hybrids (7)
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Kasia & Takashi Someya on 16 Mar 2024
- Mallard x Eastern Spot-billed Duck (hybrid) Anas platyrhynchos x zonorhynchaLast observed by Elias Ludescher on 4 Apr 2024
- Eurasian Wigeon x Northern Pintail (hybrid) Mareca penelope x Anas acutaLast observed by Anonymous eBirder on 27 Mar 2024
- Common Pochard x Ferruginous Duck (hybrid) Aythya ferina x nyrocaLast observed by Mizue Inumaru on 28 Jan 2024
- Common x Baer's Pochard (hybrid) Aythya ferina x baeriLast observed by Kasia & Takashi Someya on 26 Feb 2022
- Ferruginous Duck x Baer's Pochard (hybrid) Aythya nyroca x baeriLast observed by Takayuki Sakuma on 13 Apr 2024
- Tufted Duck x Greater Scaup (hybrid) Aythya fuligula x marilaLast observed by Oscar Campbell on 7 Mar 2000
Additional Taxa (14)
- Japanese Leaf/Arctic/Kamchatka Leaf Warbler Phylloscopus xanthodryas/borealis/examinandusLast observed by Takayuki Sakuma on 23 Oct 2023
- Black-faced/Masked Bunting Emberiza spodocephala/personataLast observed by Naoko Suzuki on 9 Jan 2024