I have seen the odd jay around near our house, and at the weekend saw one perched on the roof of the house at the bottom of the garden, so wondered if they were nesting nearby. I rather like them, although I don't know if they are nest-robbers like the magpies (which fortunately never seem to come to garden level around here). This morning on the way to the tube, I saw a pair of jays on a house a few doors down from ours which is having major roof repairs done, and they were pulling out what I think must have been roof insulation felt. Does this mean they are nesting somewhere near by, or are they just being mischievous? I had always assumed that jays built "pile of sticks" nests like the other crow family members.