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Field Trips are cancelled until further notice.

Blackbirds breed from various Atlantic islands (the Canaries and Azores, north to the Faroes and Iceland) to North Africa, Europe (except for north Fenno-Scandia, north and much of southern Russia), Asia Minor and the Middle East, parts of southern Asia, Sri Lanka and eastern China. They have also been introduced into southern Australia and New Zealand.
    They are one of the commonest birds in Britain, absent only from a few of the highest areas in Scotland and from some remote islands. Though still present, they are thinner on the ground in upland areas of Wales, northern England and Scotland.. National surveys show that numbers in Britain declined by a third between the mid 1970s and the mid 1990s, but this was partially reversed by a  23% increase between 1995 and 2010. The British population is almost entirely sedentary,though a small number migrate to France or Ireland in winter. On the other hand, large numbers from Fenno-Scandia, Germany and the Low Countries move into Britain in autumn, mainly on passage to winter in southwest Europe, though a proportion remain to winter in Britain.
    In Wiltshire they have always been so common that they are taken for granted and receive little coverage in the records except for remarks on out of the ordinary features such as unusual nest sites, early arrivals or abnormal plumage. Birds of Wiltshire recorded them in 909 of the county's 915 tetrads, with breeding in 847 of them. WTA2 found them in 911 tetrads, with breeding in 753.
