Mute vs Whooper vs Bewick's Swan: How to Tell Them Apart
Updated 6 October 2026
Side by side
| Feature | Mute Swan | Whooper Swan | Bewick's Swan |
|---|---|---|---|
| Size | About 140 to 160 cm long. | About 140 to 160 cm long. | About 115 to 127 cm long. Clearly the smallest. |
| Bill | Orange-red with a black base and knob. The knob is bigger on males. | Long and wedge-shaped. Yellow reaches past the nostril in a point. More yellow than black. | Shorter. Rounded yellow patch that stops at or before the nostril. More black than yellow. |
| Neck and head | Neck in an S-curve. Bill points down. | Long, straight neck. Long, sloping forehead. | Shorter, thicker neck. Rounder head, more like a goose. |
| Structure | Long, pointed tail, often cocked. Raises its wings over its back in threat. | Flat back, short square tail. | Compact, with a short body and tail. |
| Flight | Wings make a loud, rhythmic throb. | Quieter wings. Calls a lot in flight. | Faster wingbeats. Calls a lot in flight. |
| Song | None. | None. | None. |
| Call | Mostly quiet: snorts, hisses and grunts. | Loud, deep bugling, often in groups of three or four notes. | Softer, higher, more yelping. A musical babble from a flock. |
| Habitat | Lakes, rivers, canals, park ponds, sheltered coasts. | Lochs, flooded grassland, estuaries. Feeds on stubble and potato fields. | Flooded washes and nearby arable fields in the lowlands. |
| When in the UK | All year. | October to March or April. A few pairs breed in northern Scotland. | Late October to March. |
| UK status | Common resident. About 7,000 pairs (2016). | Amber list. About 20,000 in winter (2015-16), and rising. | Red list. Winter numbers have fallen steeply. |
Swipe the table sideways on a small screen.
The quickest way to tell them apart
Orange bill or yellow bill. Orange means Mute Swan, and you are done. If the bill is black and yellow, you have one of the two winter swans, and the shape of the yellow tells you which.
Think of the Whooper's yellow as a wedge of cheese pushed towards the bill tip, and the Bewick's as a pat of butter near the base. Size backs it up: a Bewick's beside a Whooper or a Mute Swan looks short necked and small.
By sight
- Mute Swan. The only one with a curved neck and a bill held pointing down. The tail is long and pointed, which shows when the bird upends. Angry birds arch their wings over the back.
- Whooper Swan. As big as a Mute Swan, but it carries its neck straight up and its bill level. The head and bill form one long, sloping wedge.
- Bewick's Swan. Smaller and more compact, with a rounder head and a gentler face. Each bird's bill pattern is unique, and researchers at WWT Slimbridge have used that to follow individual birds for decades.
- Young birds. Juveniles of all three are grey. Go by neck posture and head shape, or by the adults they are with.
By sound
The Mute Swan is not silent, but it has no loud call. It hisses, snorts and grunts, and the main sound is the heavy, singing throb of its wings in flight.
The two winter swans are loud. Whoopers give a deep, ringing, trumpet-like "whoop-whoop-whoop". Bewick's Swans are higher and softer, closer to yelping or honking, and a feeding flock keeps up a low, musical murmur. Record a flock and check it in Sound ID.
By season and habitat
From May to September, a swan in most of Britain is a Mute Swan. The other two are winter visitors.
Whooper Swans come from Iceland and arrive from October. Most winter in Scotland, Northern Ireland and northern England, with big flocks on the Ouse Washes in East Anglia. A few pairs nest in northern Scotland. Bewick's Swans come from Arctic Russia, arrive a little later, and winter further south, mainly in eastern England and on the Severn. They leave early, often by the end of February or in March.
Bewick's Swan numbers in Britain have dropped sharply, and the species is now Red listed. Our winter wildfowl guide has more on where the flocks gather.
Common mistakes
- Assuming any swan in a field is a Mute Swan. Check winter flocks on farmland for yellow bills.
- Calling a small Whooper a Bewick's. Use the bill pattern before the size.
- Being thrown by stained heads. Whoopers often have rusty orange heads and necks from iron-rich water.
Where to see both
Two of our hotspots are built around winter swans. WWT Caerlaverock on the Solway has Whooper Swans from October, with Mute Swans alongside for comparison. WWT Slimbridge is the classic site for Bewick's Swans in midwinter. Both run swan feeds that bring the birds close to the hides.
FAQ
Which UK swan has a yellow bill?
Two do: the Whooper Swan and the Bewick's Swan. Both have black and yellow bills and visit in winter. The Mute Swan, which is here all year, has an orange bill with a black knob.
How do I tell a Whooper Swan from a Bewick's Swan?
Look at the yellow on the bill. On a Whooper it forms a long wedge that reaches past the nostril. On a Bewick's it is a smaller, rounded patch that stops short. The Bewick's is also clearly smaller, with a shorter neck and rounder head.
Is the Mute Swan really mute?
No. It hisses, snorts and grunts, and its wings make a loud throbbing sound in flight. It is just far quieter than the other two, which call loudly and often.
Log all three swans
Mute, Whooper and Bewick's Swan are all in the Birdedex. The Mute Swan is easy any day. The other two need a winter trip.
Open the Birdedex →