The bird in photo number 196 (Brit. Birds 96: plate 59, repeated here as plate 186 is partially obscured by foliage and branches, which does not help us at all in our quest to identify it. Nevertheless, the photograph is quite realistic, being just the sort of brief glimpse you might get of a small warbler moving through low cover. And, of course, this is what `Monthly Marathon' is all about. The c

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