530Z shows a limited amount of replaced wing-coverts and tertials in the post-juvenile moult. All scapulars have been replaced for second generation feathers, including the rear lower scapulars, the ones covering the scapular coverts.

The partial autumn moult excluded the tertials. Included in the partial moult: greater covert #2, innermost median coverts #1-2, one lower lesser covert (#2) and about 20% of the visible lesser coverts.

The bill is most dark, with a slightly paler base.