Murder with Puffins, the weakest of the books I've read, is set around birdwatching on a small Atlantic island (something I'm quite familiar with, coming from a small Atlantic island). Things get a lot better with Revenge Of The Wrought Iron Flamingos which brings death to the stage of a re-enactment event, while Crouching Buzzard, Leaping Loon delves into the dark heart of a computer games development company (with a side dose of role-playing). Perhaps the most fannish, We'll Always Have Parrots, is possibly the best depiction of a convention since Diana Wynne Jones recreated the Adelphi in Deep Secrets (and it also features an amusing pastiche of Xena, Warrior Princess). The latest in paperback, Owl's Well That Ends Well, takes us to an enormous yard sale, with a dose of interior design - and the snippet of the next volume, No Nest For The Wicket sets us up for death on the (literal) field of a game of Extreme Croquet.
Good fun quick reads. There's also another series, involving a mystery-solving AI called Turing Hopper. I've managed one so far, Access Denied, and will keep my eyes open for the rest.