Legend edit
This image desperately needs a legend so we know what the colours refer to. It is not even clear if raw numbers, proportion of county population, or density of people with Norwegian ancestry is being mapped. The exact source of the data should also be explicitly cited on the image description page. Is this from the census or private surveys or academic research or what? What counts as Norwegian ancestry? Predominantly Norwegian, or at least one great-grandparent migrated from Norway, or what? Beorhtwulf (talk) 18:13, 23 August 2011 (UTC)
