Once again, it has been a case of 'come for the beautiful covers, stay for the content' This is, as it is supposed to be a dense, detailed book, and one 40 years old at that. I am not the target audience. Some of the delights of the book are all down to the charm of its warbler subjects, but Eric Simms' writing makes a difference too. I was not expecting so many smiles and even at least one laugh out loud. He conveys a wonderful sense of remembering (I am sure he had detailed notes) all the individual encounters.