“…The whole of Northern Europe, including the British Isles and Iceland, was almost certainly unoccupied by the species. It seems likely that, with the onset of the third phase of the last glaciation, all species of birds would be driven to the southern parts of their ranges, and the Redshank would probably have been pushed further south than most other waders; this probably occurred again some 10,000 years ago during the period referred to by Brooks (1951) as the Dryas. Probably Europe and Western Asia was occupied by Redshanks similar to the brown morph at this time, as otherwise it would be difficult to explain the present-day occurrence of this morph in Norway and Sweden.…”