With the publishing of HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1 (Non-passerines) some interesting changes have been made in taxonomy of Charadriiformes, adopting a scoring system developed by Tobias et al. (2010). Despite genetic studies didn’t support relevant subspecies to be elevated to species level (e.g. Rheindt FE et al. 2011; Barth JMI et al. 2013), the new scoring system recognises four new shorebird species.
New Zealand Plover Charadrius obscurus has been split into Northern Red-breasted Plover Charadrius aquilonius and Southern Red-breasted Plover Charadrius obscurus. Both species are monotypic.
Three-banded Plover Charadrius tricollaris has been split into African Three-banded Plover Charadrius tricollaris and Madagascar Three-banded Plover Charadrius bifrontatus. Both species are monotypic.
Kentish Plover Charadrius alexandrinus has been split into Kentish Plover Charadrius alexandrinus and White-faced Plover Charadrius dealbatus. Kentish Plover still remains polytypic, while White-faced Plover is monotypic.
Masked Lapwing Vanellus miles has been split into Masked Lapwing Vanellus miles and Black-shouldered Lapwing Vanellus novaehollandiae. Both species are monotypic.
There might be some more splits (like Whimbrel, Willet, Red Knot or Dunlin) in the future based on this scoring system. From the handbook point of view, the IOC checklist is still the official taxonomic reference. Since the colour plates are focusing on subspecies level, including most of the the above listed (sub)species.
Thanks for Peter Ericsson (Thailand) for providing his photo for this post.