I have been writing a short piece in the Grantham Canal Society newsletter each month for the last three years – I thought it would be fun to share these little snippets on here! If you would like to subscribe to the digital newsletter which drops into your inbox once a month, or look at older issues, visit their website here:
January 2016 – Fieldfares
Fieldfares and redwings are two thrush species which arrive in the UK for the winter each year, having spent the summer in their breeding grounds in Central Europe. The UK has had unusually mild conditions this year which has led to lower numbers than usual, but October and November still saw a good influx.
The Grantham Canal is always a reliable place to find chattering flocks of fieldfares which work their way along the hedgerows in search of the dogrose hips, hawthorn haws and blackthorn sloes, as well as the less obvious ivy berries which form a vital part of their diet in January and February when the best of the berries have been stripped. Their diet also includes insects, fruits and grains.
They are often quite cautious of human presence and their distinctive flight-call – a harsh “tsak tsak tsuk” – will often signal them moving ahead of you along the towpath.
Fieldfares and redwings often fly in mixed flocks but are easily told apart. Redwings are a rich warm brown with rusty-red underwings – similar in size to a song thrush – with a bold white line across the eyebrow. Fieldfares have more white/grey colour about their bodies and are slightly larger – similar in size to a blackbird. They lack the bold red underwing and the black supercilium which distinguish the redwing.
Both of these winter thrushes tend to stay with us through until April or early May when they head back to their breeding territories in warmer climes.