The gadwall is a dabbling duck, feeding at the surface of shallow water by 'upending' - putting its head down and its bottom up! Only a small number of gadwall nest in the UK, but large…

An attractive, green-and-yellow bird, the siskin regularly visits birdtables and feeders in gardens. Look for the bright yellow barring on its black wings, and the black crown of the males.

The brimstone moth is a yellow, night-flying moth with distinctive brown-and-white spots on its angular forewings. It frequently visits gardens, but also likes woods, scrub and grasslands.

Largely confined to the north of the UK, the rare pine marten is nocturnal and very hard to spot. However, it can be enticed to visit a peanut-laden birdtable.

The striking red crown, golden back, and bright yellow wings of the goldfinch make it one of our prettiest garden birds. It happily visits birdtables and feeders across the UK.

The sparrowhawk is a small bird of prey that can be found in all kinds of habitats and often visits gardens looking for its prey - small birds like finches, tits and sparrows.

The brown, oval, spiky seed heads of the teasel are a familiar sight in all kinds of habitats, from grassland to waste ground. They are visited by goldfinches and other birds, so make good garden…