Photo 102267038, (c) Hitoshi WATANABE 渡辺仁, some rights reserved (CC BY-NC), uploaded by Hitoshi WATANABE 渡辺仁

Attribution © Hitoshi WATANABE 渡辺仁 some rights reserved Uploaded by tbc_watanabe Source iNaturalist Associated observations Photos / Sounds 3 photos What Mallard × Eastern Spot-billed Duck (Anas platyrhynchos × zonorhyncha) Observer tbc_watanabe Date October 28, 2020 03:33 PM JST Place 日本、東京都多摩市 大栗川 (Google, OSM) Date Added October 28, 2020 09:08 PM JST Description 嘴の先にカルガモの特徴、頭の色にマガモの特徴など、両種の特徴がはっきり出ている。いわゆる通称マルガモ 2 IDs Research Grade View Sizes small medium large original