I was lucky enough yesterday to get a tipoff from Spider, a resident birder on Scilly who told me that there was a Little Bittern at Lower Moors on St Mary’s. Little Bitterns can be very skulking but this adult female was very obliging.
Until pretty recently Little Bitterns were considered very rare passage migrants in the UK. In 1984 a pair bred in Yorkshire. Then in 2010 they bred in the Somerset Levels for the first time and have bred there again since.
The Somerset Levels have seen a concerted effort by RSPB, The Wildlife Trust and Natural England to create new and extensive wetland areas and this combined with climate change has attracted Little Bitterns to the UK.
It will be interesting to see how their colonisation develops and whether they spread to the large habitat creation projects in the East Anglian Fens at places such as Wicken Fen, Lakenheath Fen and the Great Fen.