The reserve is home to a population of harvest mice, one of the smallest mammals in the United Kingdom.
The millpond contains a significant population of large carp, often visible from the observation points.
The site hosts a notable variety of dragonflies and damselflies, particularly during the summer months.
It is a recognized site for the rare nocturnal Bechstein's bat.
The reserve includes an ancient woodland area, which provides a habitat for various orchid species.
The Millpond was historically associated with the iron industry in the Weald region.
Warnham Local Nature Reserve is a 92-acre site centered around a large millpond, serving as a significant habitat for wetland wildlife in West Sussex. The reserve features a diverse landscape comprising reedbeds, meadows, ponds, and woodland, which support a variety of bird, insect, and mammal species. It is widely recognized as a premier location for birdwatching, offering several specialized hides positioned around the water and through the woods. The site has been managed as a nature reserve since 1988, having previously been part of the Warnham Court Estate. The millpond itself is fed by the River Arun, creating a distinct riparian ecosystem. Educational signage and maintained trails provide access to the different habitat zones throughout the property. The area remains a key regional site for studying biodiversity and bird migration patterns.
The elevated bird hide overlooking the main millpond provides the best vantage point for panoramic nature photography.
Bring binoculars for the best views from the bird hides.
Check the visitor center board for recent wildlife sightings before starting your walk.
Stay on designated paths to avoid disturbing sensitive nesting areas.
Feeding the ducks and swans, as it disrupts the natural balance and health of the pond ecosystem.
The visitor center and certain paths may have restricted access during heavy winter flooding.
Keep noise levels low to avoid disturbing wildlife; dogs must be kept on a lead at all times.
