Has anybody else heard / seen the woodpecker(s) recently residing in Blythe Hill Fields? The first time I heard it I thought I was dreaming but I've come across it a few times since in both Blythe Hill fields and Brockley Hill Park, and it really makes my day I'm no bird expert but I've never heard a wild woodpecker in all my London life, so if anyone with more twitching expertise knows, I was wondering how rare or common this might be?