Taken in Aug 16. I know cormorants have a white patch on the head by the bill, but how do you know if this extra white area is no obvious. Is there a difference in colouration on the bill. I know a shad can have a tufty head but again this is not clear in these pictures. Can someone give me some good tips on these. Less confusingly for me I think the other tow are a stonechat and a buzzard ? Thanks guys.