The third unidentified duck appears to be B.Duck. There are no tags for this character currently.
Thank you for the explanation, as well as the translation and TN link. As far as I can tell from the linked page, "B.Duck" is the name of both the character and the associated IP, so I'll provisionally add "B.Duck" as a copyright tag and "B.Duck (character)" as a character tag.
PsyduckB.DuckA brand revolving around ducksDonald DuckI miss youThe exclamation particle 呀 "ya" is pronounced similarly to the word for duck 鴨 "yā"Let me explain to you the types of ducks