2cy May (female). Some birds arrested their pre-breeding moult during winter and show two generations of wing feathers. Such birds can often be specified to either 2cy or 3cy+. This individual shows two generations of AL feathers. The inner two are pre-breeding (fresh with a dark brownish-black ground colour and a dark grey tip) while the outermost is much bleached and worn, which normally is the case with juvenile feathers after the first winter. Further, the pale fringe in the tip is visible and the feather shows a typically juvenile loose texture.