The disc-shaped leaves and straw-coloured flower spikes of Navelwort help to identify this plant. As does its habitat - look for it growing from crevices in rocks, walls and stony areas.

Greater burdock is familiar to us as the sticky plant that children delight in, frequently throwing the burs at each other. It actually uses these hooked seed heads to help disperse its seeds.

The little grebe is a fantastic diver, but to help it swim underwater, its feet are placed towards the back of its body, making it rather clumsy on land. It only really comes ashore to breed.

A fluffy-looking grass of rough grassland, roadside verges and disturbed ground, False oat-grass is very familiar and often overlooked; in fact, it can help to stabilise dunes and shelter small…

The gudgeon is a bottom-dwelling fish, similar to the stone loach, but with only two whisker-like barbels near its mouth. These sensory organs help it to find its prey in the sand and gravel of…

The bright green ring-necked parakeet is an escapee and our only naturalised parrot; its success is likely due to warmer winters.

The comma has distinctively ragged wing edges, which help to camouflage it - at rest, it looks just like a dead leaf! It prefers woodland edges, but can be spotted feeding on fallen fruit in…

The pink, frayed flowers of Ragged-robin are an increasingly rare sight as our wild wetland habitats disappear. You can help: grow native plants in your garden and enjoy the hum of visiting…