Redshank in Vietnam

The difference between the Common Redshank and the Spotted Redshank in Vietnam:

1/ Common Redshank
- Red bill at the base on both mandibles;
- White edge on the lower edge of the wings in flight.

2/ Spotted Redshank
- Red bill at the base on the lower mandible;
- Breeding ones have dark colors all over the body;
- Plain, dark wings with no white trailing edge.