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The Merlin is a very special bird. One of the smallest ‘True Falcons’, it stands outside the usually assumed grouping of the others, and also prefers a habitat which differs markedly from them. While most falcons are found in warmer climes, the Merlin is a northern dweller, occupying a circumpolar range at the fringes of the Arctic. Only the Gyrfalcon has a range which extends further north, though sub-species of that remarkable traveller the Peregrine Falcon also breed in the Arctic. With its fast, agile flight the Merlin was popular with medieval falconers who thrilled at its ‘ringing’ flight in pursuit of larks. Today, changes in legislation mean the species is much less often seen as a falconry bird. It might be assumed that with its vast range the Merlin has been well studied, but nowhere is it common, and much of its habitat is difficult to reach and work in, though the falcon’s recent enthusiasm for urban-dwelling in North America has made it more accessible and its biology and ecology have become better understood. This book draws together what is currently known about this elusive, but beautiful and enchanting species.
Richard Sale is a physicist with a PhD in astrophysics, who now devotes his time to studying Arctic ecology and the flight dynamics of falcons. He has studied Merlins across the species’ range. With Eugene Potapov he co-authored The Gyrfalcon monograph which won the US Wildlife Society Book of the Year in 2006. More recently he co-authored Steller's Sea Eagle with Vladimir Masterov and Michael Romanov which won the US Wildlife Society Book of the Year in 2019. His other books include the first field guide to birds and mammals of the Arctic, The Snowy Owl (again with Eugene Potapov), The Arctic: The Complete Story (recently republished as The Arctic, with photographs by himself and Norwegian photographer Per Michelsen), and the New Naturalist title Falcons.
"[...] Sorry, Merlins, I was remiss to neglect you. The Merlin reveals a fascinating bird, as well as an interesting look at the studies that have shed light on it. It is required for anyone working with this falcon, and recommended to other ornithologists, as well as birders and falconers who’d like to know more about it."
– Grant McCreary (20-10-2015), read the full review at The Birder's Library
"[...] this is a very good book [...] All in all, this is a book that all raptor enthusiasts and Merlin workers especially will want to have on their shelves."
– Eric Meek, Ibis 157, 2015
"The raptors have probably attracted more monographs than any other group of birds, with most of the British and Irish species having at least one volume written about them. The Merlin, by Richard Sale, is the first to tackle this small falcon since Petere Wright's book on the Merlins of the South-East Yorkshire Dales, published nearly a decade ago. Some readers will recognise Richard's name from the Poyser monograph on Gyrfalcon, written in partnership with Eugene Potapov, and like that book, this is a detailed and well-researched account.
The book follows what has become a fairly standard format for monographs. The species and its character are first introduced through a more general section on falcons – and in this instance falconry – before the text turns to diet and hunting behaviour. Roughly a quarter of the book is then devoted to breeding ecology which, given that this is where most research on the species has been focused, is extremely rich in its content. The final third of the book covers movements, mortality, interactions with other species and the reasons for population change.
The focus of the book is very much global, placing the ecology and behaviour of British and Irish Merlins into a wider context, but Richard has also been able to bring to the book the research being carried by fieldworkers here, working in places like the Peak District and Scotland. It is really good to see, for example, the chick growth curves produced by the work of Nick Picozzi, Ian Poxton and Alan Heavisides in a book of this kind.
The text is packed with information and is well-supported by the key references but there are occasions where long and poorly structured sentences make it difficult to interpret what is being said. At a wider level the narrative lacks structure and the reader isn't engaged in a 'story' in the way that the best raptor monographs manage to achieve. Photographs and other figures accompany the text, with the latter mostly well used to support what is being said. There is, however, a lack of consistency in the graphs and figures – these vary greatly in style, font size and colour use – and the quality of the photographs is equally variable – one or two are rather pixelated. Such quibbles aside, the book delivers a wealth of information on the Merlin and will surely support and prompt more work on this engaging bird."
– Mike Toms, BTO book reviews