Mackerel are a sign of summer's arrival, when they appear inshore in huge numbers all around the UK. As well as being a sustainable seafood choice, they are an important food source for many…

During the breeding season, the common tern can be seen around our coasts and also inland at gravel pits, reservoirs and lakes. It nests in noisy colonies and can be spotted plunge-diving for fish…

This huge gull can be seen around most of the UK's coasts in summer, with some venturing inland in winter.

The hawfinch is the UK's largest finch, with an enormous bill powerful enough to crush a cherry stone. Despite their size, they are typically elusive, especially during the summer nesting…