Although very small it has a lot of flora and fauna on show and in the height of the summer the butterfly and moth species can number well into double figures.

Milton Lock Nature Reserve

 Small Tortoiseshells are quite common here in the spring where they find a mate and lay their eggs on the abundant Nettle plants on the reserve.

The Kestrel is quite often seen hovering over the reserve, in fact there is a pair nesting on the Allotments nearby. Here is the female after trying to fish out some prey.

The Small Copper is quite common on the site and is one of my favourite butterflies. There are several males normally battling for territories and females looking for suitable egg laying sites.


Car park adjacent to the Thatched House pub. Further parking is available opposite The Old Oyster house pub.

SZ 6765 9975 Reference


1 hectare


Flat, unsurfaced path but fairly smooth, quite narrow

A small but perfectly formed pocket of wildness, Milton Locks nature reserve is a coastal oasis on the border of Portsmouth’s urban sprawl. It’s the last natural section of coastline on this on this side of Langstone Harbour and is packed full of different habitats and wildlife.


The small wood provides much needed shelter to birds such as starlings and house sparrows, and the nectar-rich flowers that grow in the dappled sunlight provide food for painted lady and small copper butterflies. The path snakes through tall grass, which buzzes with an orchestra of grasshoppers and crickets, before opening out to the shoreline. 


Depending on the tide, you might be lucky enough to spot tiny fish in the shallows, crabs scuttling between clumps of seaweed, or oystercatchers foraging on the mudflats. And don’t forget to look out saltmarsh specialist plants, like sea purslane, sea aster and common saltmarsh-grass.





The Marbled  White Butterfly can quite common in the grasses in some years, here they are mating, and the female will drop her eggs on the grasses as she flies over the grass. 

The common Green Grasshopper can be found in the grass in the height of the summer months. It is is food for the Kestrels which hover over head

Closeby the reserve are two large lakes, just along the Milton Foreshore where the Cormorant can be seen along with a host of other birds 

Many waders can be seen like Redshanks, Oystercatchers and Common White Egrets close to the Milton Nature Reserve