The swan was later named Bewick's swan
, in memory of the North East engraver and naturalist Thomas Bewick.
This winter we also saw a Bewick's Swan
or tundra swan on the whooper pond during the cold snap, sadly only for a couple of days.
The biologist, who is head of media for the Wildfowl and Wetland Trust, then realised she could use her flying skills to help highlight the plight of the endangered Bewick's swan
You will be able to see all sorts of animals, including: Kate the Kingfisher | Flavia the Andean flamingo | Benedict the Bewick's swan
| Emily the Emperor dragonfly and | Lottie the otter |Nick Brooks, Martin Mere's general manager said: "We take particular pride in helping to conserve the Hawaiian goose (Nene), the world's rarest goose, which was identified as a species that needed protecting by our founder Sir Peter Scott.
They have already recorded their first Bewick's Swan
of the winter a full 25 days earlier than its 2014 counterpart.
The whistling swan and its Eurasian counterpart, the Bewick's swan
, were formerly considered separate species, but were more recently lumped under the inclusive name "tundra swan.
The Severn Estuary is the second most important site for waterbirds in Wales, after the Dee Estuary which is home to 129,271 birds and has also seven internationally important species: the mute swan, bewick's swan
, shelduck, pintail, shoveler, ringed plover and dunlin.
They include the Bewick's Swan
, one of the few species to pair for life with the same partner.
Her expedition, the Flight of the Swans, is the first ever attempt to follow the migration of the Bewick's swan
from the air.
Over the same period, numbers of whooper swan have also risen, increasing by 122 per cent, but Bewick's swan
has declined by 44 per cent.
This small swan, named after the engraver Thomas Bewick, is one of the birds that would have its Severn Estuary habitat wrecked by both the largest barrage and the two coastal lagoons.
This year saw the earliest arrival of a Bewick's swan
at Slimbridge since the WWT began keeping records in 1963.