Field notes
Why the Mallard Really Does Rule the Roost
Familiar, adaptable and utterly cosmopolitan — we look at what makes the mallard the world’s most successful duck.
D
Dr. Mara Fenwick
Editor-in-chief · 1 min read · 3 Jun 2026
The mallard is the duck almost everyone can name, and with good reason. Across Britain, from remote Highland lochs to a puddle in a city park, the mallard has made itself thoroughly at home.
That success comes down to a famously unfussy diet and a willingness to nest almost anywhere — under hedges, in window boxes and even on flat rooftops.
But there is more to the mallard than meets the eye. Listen for the female's confident quack and watch for the drake's curled black tail feathers — the simplest field mark in all of birding.
