Ok guys. I purchased what I thought was 4 Egyptian goslings about 6 weeks ago. They looked identical from the start and were less than a week old. As soon as they began to feather out I noticed one was different. It is smaller, feathered out sooner, has a differently colored and shaped bill and head. I guess I just need to know exactly what this is and if its pure. The best guess has been a ruddy shelduck but I just thought I would pick your brains as.well.
https://www.backyardchickens.com/gallery/image/view/album/6011631/id/5171061/sort/display_order
https://www.backyardchickens.com/gallery/image/view/album/6011631/id/5171061/sort/display_order