Caitlyn of Princeton messaged to ask if I fancied reviewing a newly published book entitled Birds At Rest: The Behaviour and Ecology of Avian Sleep by American ornithologist Roger F Pasquier. I quickly replied “yes please”.
Pasquier is well qualified to write the book: a career with BirdLife International, the World Wildlife Fund, the Environmental Defence Fund, and the National Audubon Society. He is currently an associate in the Department of Ornithology at the American Museum of Natural History. His books include Birds in Winter: Surviving the Most Challenging Season.
Although written from the perspective of an American birder and ornithologist, the theme of birds at rest is global in scientific significance and understanding. Birds and how they spend half their lives is a subject for continuing study by birders of all persuasions, irrespective of their geographical location.
Birds at Rest - Princeton
New World and Old World birds are all descendants of dinosaurs, creatures that roamed Earth some 130 million years ago, one of which, Mei long, was asleep when volcanic ash covered it in the same sleeping position that many birds use now. Mei long (sleeping dragon) was one of many species of small birdlike theropod dinosaurs living in the area of Liaoning, China all those years ago.
The meaty chapters of Birds At Rest together with a comprehensive index contains many references to European birds and North American birds alike when readers with a particular interest(s) can quickly find the link they need. For example, Eurasian Wren lists alongside House Wren and others of the clan. Likewise there is information about European Pied Flycatcher, Oklahoma’s State bird the Scissor-tailed Flycatcher, and a description of how the female Yellow-billed Flycatcher of Central and South America builds a suspended pouch in which to sleep during the breeding season.
Bird roosts, birds at rest and birds asleep has been a special interest of mine for many years, a fascination that stemmed from the early days of a ringing permit with a desire to learn more about the bird species found at roosts of my local Lancashire area of the UK. Here was a subject that had been sorely neglected in the past, and where apart from the nationally known Starling roost of Blackpool Centre, there were few published records of roosting singles or roost assemblies.
An early inspiration to better local knowledge was Peter Barnes who many years ago recorded large Corn Bunting roosts at Marton Mere, Blackpool. Sadly, Peter is no longer with us, the Corn Bunting is near extinct as a local breeding species and the existence of a winter roost of Corn Buntings is but a birder’s dream.
There followed years of finding, tracking, confirming and ringing local birds at rest - Swallows, Chaffinches, Linnets, House Sparrows, Greenfinches, Redwings & Fieldfares, Blackbirds, waders, Long-eared Owls. Much was learned from the many data sets sent to the BTO in those years when, unlike now, birds were plentiful.
This preamble describes my justification, my reason and my desire to read Birds At Rest. To learn from history, and to discover how birds at rest are studied and recorded in the Digital Age of 2025 and beyond when GPS, electronic devices, radio telemetry and light-level geolocators are increasingly used.
The Contents page shown below is an indication of how readers can enjoy and learn from this book, a volume for ornithologists, experienced birders, and for those on the learning curve of the world of birds.
Birds at Rest - Princeton
The author has an easy style, a way with words coupled with a comprehensive understanding of birds, cognition gained from a lifelong experience amongst birds and fellow ornithologists.
The chapters contain many fascinating, insightful, often esoteric facts and figures about how birds spend half their lives, much, if not the majority of it previously unknown to me (and I suspect, to a good number of birders).
We have all seen the massed huddles of penguins maintaining warmth on the Antarctica ice, but how many have witnessed 20 or more different species pressed against each other under rock ledges at 4000 metres in the High Andes?
And did you know that Rock Ptarmigans on Svalbard in the Greenland Sea at 74-81° N live through ten weeks lacking almost any light and spend most of all day burrowed in the snow?
I especially recommend to readers Chapter 10, Human Impacts. As might be expected the overall impact of the human race onto birds that need to rest and/or sleep is negative. Positives such as the warmth of industry, city centres, tree plantations and sugarcane fields are negated by increased light and noise and where living in close proximity to humans has exposed birds to invasive species and predators, impacts that has changed sleeping habits gained from millions of years of bird evolution.
Birds at Rest - Princeton
I have given a taste only of Birds At Rest. I cannot recommend this book highly enough as a good read. It is original, illuminating, entertaining, educational and fascinating in so many aspects. From whatever direction of approach it is an exhilarating read for the layman or scholar alike and at £30 a throw better value than a subscription to RBA and the dead end of pin-drop birding.
With a full 360 pages of text, minimal illustrations and no actual bird photographs this book provides a welcome change to the recent glut of field guides from publishers. This is a book to read and one to inwardly digest rather than a Sunday afternoon browser.
This fine book was released in North America in February 2025 and only now is it published in Europe. Grab yourself a copy. You will not be disappointed.
Price: $35.00/£30.00
ISBN:9780691259963
Published (US):
Feb 18, 2025
Published (UK):
Apr 8, 2025
Pages: 360
Size: 6.13 x 9.25 in.
26 b/w illus.
