Mandarin duck in Isabella Plantation
The mandarin duck (Aix galericulata) is a perching duck species native to the East Palearctic. It is medium-sized, at 41–49 cm (16–19 in) long with a 65–75 cm (26–30 in) wingspan. It is closely related to the North American wood duck, the only other member of the genus Aix. 'Aix' is an Ancient Greek word which was used by Aristotle to refer to an unknown diving bird, and 'galericulata' is the Latin for a wig, derived from galerum, a cap or bonnet.[2]
https://en.wikipedia.org/wiki/Mandarin_duck
The Isabella Plantation is a 40 acre woodland garden set within a Victorian woodland plantation planted in the 1830's. First opened to the public in 1953, it is best known for its evergreen azaleas, which line the ponds and streams and at their peak of flower in late April and early May.
https://www.royalparks.org.uk/parks/richmond-park/richmond-park-attractions/isabella-plantation