This is Bird Note.

As he trained to be an arborist, Thomas Pulsome started developing two new interests.

The first was birds.

My favourite bird is a Robin, Robin Redbreast in Europe.

Because when you're digging, the Little Robin is always following you around

looking for food, worms and grubs and all sorts of things that you're digging up. The other was

building with Lego bricks, after a dark age away from the toy while at university. And then, Thomas found these interests colliding.

I wanted to build something related to my work, and I had a eureka moment, which was a

robin landing on my fort candle.

So I thought, right, I'm going to build a robin out of Lego.

After building that European robin, he built more bird models, and a name for himself in the Lego community.

To date, he's made more than 75 species.

And in 2015, Thomas was one of the first Lego fans to have his designs produced as an official set.

It included a Blue Jay, a hummingbird, and, of course, a Robin.

I was really chuffed, and I was invited to a Lego store in London.

People were queuing up to get me to sign the box and everything.

It was very surreal and an extremely proud moment of my life.

To see pictures of Thomas's delightful bird models, go to our website, birdnote.org.

I'm Mark Bramhill.