Chris Packham, Michaela Strachan and Martin Hughes-Games broadcast live from the Wildfowl and Wetlands Trust's Slimbridge reserve.

Martin is tracking Bewick's swans as they arrive from Siberia to overwinter at the reserve. Chris and Michaela report back on their visit to the Scottish island of Islay, where they have been meeting the resident otters and eagles, and experiencing the spectacle of thousands of migratory barnacle geese.

Meanwhile, guest presenter and wildlife cameraman Richard Taylor-Jones is on the trail of one of Britain's least known seal populations in the south east, which live in one of the world's busiest shipping lanes.