I like perusing the titles of books in the libraries of large country houses. They give an impression of the interests of previous owners of the house and, because of my liking for Natural History, it is volumes on this subject that particularly catch my eye [1,2,3].
Last week, I visited Standen House, the country home of the Beale family from the end of the Nineteenth Century. It has lovely gardens and the interior of the house is decorated in Arts and Craft style and contains some very fine furniture . As would be expected in the library of a family with seven children - and, later, grandchildren - there were many volumes about fairy tales and adventure, but the book that stood out for me was The Days and Nights of Birds by the French amateur ornithologist Jacques Delamain (the cover of my copy is shown above). Ornithology has always been a popular pastime, and many books have been written about the habits, and habitats, of birds. In the Foreword of The Days and Nights of Birds  Delamain writes:
"But has not everything essential been said about birds?" The question was put to me one day by Abel Bonnard who was unwilling to see too narrow a limit imposed on his keen poetical curiosity. I assured him that this subject, like all which touch nature, was inexhaustible. Indeed, for the seeker, one discovery leads to another and new problems appear which the mind tries to solve. The beauty of living creatures and the setting in which they move, life's harmony and complexity, always awake in us unexpected echoes. Intellectual curiosity, the aesthetic sense and poetry never fail to renew the world.
Each one of us follows his own way, seeking to understand the mystery of creation. For some, the way grows endlessly broader, embracing vast horizons, others advance slowly and shortsightedly along a narrow path. But no one can set out without discovering riches..
We can see that Delamain's interest in birds was wrapped up with his love of Nature and he communicated this in an attractive prose style that is apparent even in translation. It is easy to see how readers may be stimulated to look more closely at birds after reading his books and Delamain concludes the Foreword by writing:
My first book, Why Birds Sing, brought me precious assurance from my readers that I had taught them how better to observe Nature, and how to love her more. If my present volume induces them to look once more on the ever varied spectacle offered to our eyes by the seasons as they pass, and increase their interest in the creatures that people our fields, woods and rivers, it will have fulfilled its purpose.
One can imagine Mr Beale, or visitors to Standen, reading the book and using it as a guide to their own observations on walks in the garden or around the estate.
The writings of Delamain influenced many others, including the composer Olivier Messaien. Messiaen was fascinated by birdsong and Hill and Simeone  describe the result of his visit to Delamain's home La Branderaie de Gardépéé (see above):
In April 1952,.. .. Messaien took what proved to be a decisive step. At the suggestion of his publisher Leduc he paid a short visit (15-17 April) to Jacques Delamain, a leading ornithologist and prolific author. Delamain lived in south-west France, his house at Gardépéé set in large wooded grounds midway between Cognac and the neighbouring town of Jarnac, where the Delamain family firm still produces brandy. Delamain's tuition enabled Messaien's knowledge of ornithology to catch up with his musical aspirations. In particular, he learned to identify birds solely through their songs or cries: 'It was [Delamain] who taught me to recognise a bird from its song, without having to see its plumage or the shape of its beak.'
..the visit to Delamain proved a life-changing experience. Delamain inspired Messiaen to pursue his researches in a more systematic way. The results can be seen in the surviving birdsong notebooks, the Cahiers de notation des chants d'oiseaux, in which Messaien started to collect his observations from nature..
Messaien went on to compose Réveil des oiseaux and Hill and Simeone  include a quote from the composer about this work:
"In Réveil des oiseaux [...] there's really nothing but bird songs [...], without any added rhythm or counterpoint, and the birds singing are really found together in nature; it's a completely truthful work. It's about an awakening of birds in the beginning of a spring morning; the cycle goes from midnight to noon: night songs, an awakening at four in the morning, a big tutti of birds cut short by the sunrise, forenoon songs, and the great silnce of noon.."
You can hear the piece in this video clip  and it is interesting that it follows a sequence of bird song through a day, perhaps in homage to Delamain's Days and Nights of Birds.
I find the link between Delamain and Messaien fascinating: a great composer and a wonderful writer both communicating about Nature and the pleasure that it gave them. Thank you Standen, and the National Trust, for giving me a chance to tell the story.
 Jacques Delamain (1933) The Days and Nights of Birds (translated by Mary Schlumberger). London, Victor Gollancz.
 Peter Hill and Nigel Simeone (2007) Olivier Messiaen: Oiseuax exotiques. Aldershot, Ashgate,