From personal records to cooperative surveys
Nicholson counted house sparrows in Kensington Gardens and recorded starling flight routes. After entering Oxford in 1926, he participated in cooperative ringing and organized the Oxford Bird Census in 1927.
The national heronry census of 1928 extended cooperation among observers. Such work required shared questions, coordination and continued participation beyond individual bird lists.
References: [1]
Building a national information network
The Art of Birdwatching (1931) argued for a national body to coordinate research. When the British Trust for Ornithology was formed in 1933 Nicholson became its first treasurer.
The Trust organized projects, reported findings and connected local observers. Nicholson later served as secretary and chairman, helping secure a more stable structure of finance and staffing.
Planning and public administration
Nicholson worked with Political and Economic Planning. During the Second World War he managed shipping-tonnage allocation; in 1945 he joined Herbert Morrison’s government office.
He brought administrative experience to conservation organization, promoting surveys and ecological research as a basis for policy while coordinating people and resources across government and voluntary bodies.
References: [1]
Conservation and public debate
As head of Britain’s Nature Conservancy, Nicholson developed connections among protected sites, research and voluntary organizations. He also participated in creating the World Wildlife Fund.
After leaving the Conservancy in 1966 he established Land Use Consultants. The Environmental Revolution (1970) addressed conservation’s place in broader political, administrative and public concerns.