The Moorhen, also called the Common Moorhen, Common Waterhen and Marsh Hen, is a type of "rail" like Coots and Gallinules.
It lives near water (not only on moorland), and is common throughout most global temperate zones.
Love at first sight
Male and female have similar appearance; both are called "MoorHENS"
So I said to him . . .
The back and wings are dark chocolate brown rather than black, the yellow legs have a red garter above the knee
and the white under-tail is a giveaway (often raised as a warning).