tag:blogger.com,1999:blog-3618218969647493480.post6723634841427396367..comments2024-02-26T09:26:06.339-08:00Comments on Wader Quest: Oystercatchers of the world. Pt 1: The black-and-white ones.Rick Simpson Birdinghttp://www.blogger.com/profile/07099968255207028432noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3618218969647493480.post-25980420721448902002017-08-27T11:36:04.904-07:002017-08-27T11:36:04.904-07:00I dare say they have, but I have not seen it. It i...I dare say they have, but I have not seen it. It is a curious situation a bit akin to that of the Black-winged Stilt, where black and white birds have evolved into all black species (one in the case of stilts 5 in the case of oystercatchers). It is thought that Oystercatchers evolved on Gondwanaland and separated with the continents. This is suggested by the majority of species lying in the southern hemisphere. Rick Simpson Birdinghttps://www.blogger.com/profile/07099968255207028432noreply@blogger.comtag:blogger.com,1999:blog-3618218969647493480.post-79148427116749356882017-08-27T06:46:16.908-07:002017-08-27T06:46:16.908-07:00Has anyone made a study of how such a species beca...Has anyone made a study of how such a species became worldwide, forming different subspecies but retaining its fundamental features and recognisability as an oystercatcher. The spread cannot surely have occurred far back in time.David Richardsonhttps://www.blogger.com/profile/05341451847868513356noreply@blogger.com