The letterbox extrudes a new issue of the London Review of Books, which contains the following letter:
Much as I enjoyed John Burnside’s poem ‘Hyena’, I must point out that he has his hyenas crossed. The ‘giggle’ and pack behaviour referred to in the final stanza suggests the spotted (or ‘laughing’) hyena, but the first stanza (white mane, grey face, bat ears) describes the striped hyena, a solitary animal which does not ‘laugh’.
Maryland Institute College of Art, Baltimore
Which was the point that started me off on the poem, until I got distracted by falanoucs. Not much point doing zoology if you're not going to bother getting it right.