Arthur is ready! Spring is just around the corner. He knows this because he has once again found there are some small pots of compost which require guarding, and will no doubt become seedlings soon with the proper feline attention.
It is fortunate indeed that the pots seem ideally placed in front of the warm Rayburn for his convenience, because he was busy guarding that, too. One can never be to careful with Rayburns: several hundredweight of hot cast iron is liable to just wander off when nobody is looking.