There are hundreds of tyers who tie and have tied various colors of flies just like this for 40 or more years. Tied in pink or fuschia, it is very commonly used for Pink Salmon here on the west coast.
Tied in hot pink it is also very effective for silvers. Sort of a Wog that is not quite dry; but not really wet either. Flies of this type have been very common in Montana for quite a while, they are usually referred to as "deer head buggers" (I had even heard of the style called a "muddler bugger". I like the Calgary area name better, it rolls off the tongue better.