Young sp: The post-juvenile moult is rather restricted but variable and often only includes parts of the body, LC and MC. More advanced birds may rarely include whole body, LC, MC and some inner GC.
Young WC: The pre-breeding moult is complete and includes the whole plumage.
Adult sp: The post-breeding moult is rather restricted but variable and often only includes parts of body, LC, MC and sometimes single TT or central RR. More advanced birds may rarely include whole body, LC, MC, TT and some inner GC.
Adult WC: The pre-breeding moult is complete and includes the whole plumage.