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Ellie’s taking a woodland walk to track down the elusive pine marten – with the help of a sniffer dog that can smell their poo!

By pawing at suspected pine marten scat (or poo), black Labrador Luna helps expert Stuart Edmunds map their territory while any scat samples found are also DNA-tested to help determine the population’s genetic make-up.

And Stuart’s also got some exciting news for Ellie: his woodland cameras have recently captured footage of pine marten kit – the first evidence of breeding in the woodland! 

Joe Crowley is on the Isle of Man where he takes a trip back in time and jumps on board the world's oldest horse-drawn tram in Douglas. 

The trams were first introduced to take advantage of the booming tourist trade in Victorian times. 

Joe steps inside the stables and meets Mike Crellin who has been holding the reigns for 41 years.

But even with expert instruction, how will first-time tram driver Joe fair?

The Countryfile Team set Anita a little challenge - to up her rural credentials! 

Her mission is to learn how to herd ducks with dogs under the watchful eye of Stuart Barnes.

 This isn’t just a jolly though – Anita’s real test will be putting her skills into practice in front of a live audience at Countryfile Live.

Stuart uses rescue Collies to explain dog behaviour, dog-training and psychology. 

They show their skill by herding a flock of fast-moving flightless Indian Runner ducks that live with the dogs and are very used to them. 

They are also rescue animals.  Being male and skinny they can’t lay eggs and don’t make for good eating. But they do provide great entertainment!

John visits Blenheim Palace to see how ducks are being put to work on the estate’s lakes.

Plagued by Canadian pondweed that threatened the natural ecosystem, the estate team called upon the help of mallard ducks to keep this weed in check.

John lends a hand as the latest 50 ducks are introduced to their new home.

Truffles are one of the world’s most expensive ingredients, and also one of the most mysterious. 

Now, with the help of a 170-year-old ‘living laboratory’ and a dog called Lucy, researchers at Cambridge University are studying the seasonal changes and productivity of the Burgundy truffle. 

Ellie joins Professor Ulf Büntgen and his dog Lucy on one of their hunts for truffles in the Cambridge Botanic Garden.

Matt meets up with one of the laziest residents of Carisbrooke Castle on the Isle of Wight. 

Donkeys were used for centuries to draw water from the castle’s deep well by walking round a 360 degree treadmill.

These days Carisbrooke’s donkeys only do the very occasional turn drawing water for tourists, but only if you can get them to!

And, to be fair, Jack the donkey isn't really that keen. Who can blame him? Maybe Matt can do a better job!