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Trees and the Tamar valley (1978)
Tides in the Tamar (1980)
Avocets on the Tamar (1985)
Tentative comments on hedge banks around Halton Quay (1985)
Birds of the River Tamar (1987)
The upper reaches of the River Tamar (1994)
Brent Tor remembered (1995)
The birds of the Tamar valley (1996)
European White elm (Ulmus laevis Pall) in the Tamar valley (1997)
Harewood diaries: weather (1999)
At the water's edge: a personal view - part I (2000)
At the water's edge: Sutton to Morwellham - part II (2001)
At the water's edge: Sutton to Morwellham - part III (2002)