On 12th October 1985, while hiking on Galley Head, Co. Cork, with J. Adamson and P. A. Cummins, I discovered an unfamiliar bird feeding with some Blue Tits Parus caeruleus and Goldcrests Regulus regulus. The initial view of its bluish 'cap' and greenish upperparts made me suspect Red-eyed Vireo Vireo olivaceus. When the bird turned around, however, and revealed its lemon-yellow underparts, I realise

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