2cy+ October. Adult PC are slightly more dense and crisp fresh, sometimes showing broader and more square-shaped tips. The outer edge is often slightly colder greyish-brown, a bit broader and more diffusely set-off towards the dark centre than in juveniles. Further, the greyish-brown outer edge often reaches further out on the feather, closer to the tip, sometimes even narrowly rounding the tip. This pattern gives a dark centre (between the shaft and outer edge) that narrows in width towards the tip. [CS00451]