Viceroy butterfly / Limenitis archippus

This highly cropped image is from way back on 23rd July 2009. I was thrilled to bits to have spotted this beautiful Viceroy butterfly while we were botanizing the Nodwell Sanctuary, SE of the city. This is the only time I have ever seen this species - in fact, I had never even heard of it before. In Alberta, it is an uncommon species. I will add a previously posted image, showing the topside. Rather similar to a Monarch butterfly, but much smaller.

en.wikipedia.org/wiki/Viceroy_butterfly