Willow Warbler
30 Mar 2012
The balance of returning Phylloscopus warblers at migration sites on the south coast of England has swung from Chiffchaff to Willow Warbler. An estimated 3,000 'phylloscs' poured through Portland Bird Observatory in Dorset on 31 March, and the day's record-breaking ringing total of 615 birds included a 3:2 ratio of Willow Warbler to Chiffchaff. Here in Thetford, my first Willow Warbler was a day later than last year, appearing on 1 April. Keep an eye on the reporting rate over the next few days!
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