They say that the faintest writing is better than the most vivid memory, so with photos. Here is a shot I took eight years ago - not a very good one, IMO, but it will give you an idea of the color of the local birds. There is more light brown on the neck than I remembered and the back is bluer - even though it really does look grey when they are flying. Nonetheless, there is really a striking difference with your birds.
WhiteRiver-04-08232009 by UnderOpenWater, on Flickr