New Holland Publishers Ltd · Welsh Harp Conservation Group
| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Birds of Brent Reservoir: The Natural History of the Welsh Harp | Paperback | 978-0-9541862-0-3 | 2001 | etc. |
| The Garden Bird Year | " | 978-1-84773-503-4 | 2009 | |
| The Garden Bird Year | Hardcover | 978-1-85974-655-4 | 2001 | |
| The Garden Bird Year: A Seasonal Guide to Enjoying the Birds in Your Garden | Paperback | 978-1-85974-951-7 | 2004 | The Wildlife Trust |