This bird is the 3rd Pine Grosbeak recorded to have been seen in Shetland, and the 12th for Britain. I enjoyed watching it today (albeit for only around 10 mins and in the shade). I’ve also uploaded a video with a few clips of the bird to YouTube.
You can read more about the bird on the Shetland Times website, and there’s lots of photos on the Nature in Shetland website. Also, Rebecca Nason has posted an article on her blog about finding the bird.