FCF . . . DPB . . . WTH?:  An Introduction to Wolfe-Ryder-Pyle

Just over a decade ago, the Wolfe-Ryder-Pyle cycle-based aging system introduced a new way to categorize the ages of passerines. Applying the new age codes is fast becoming a useful (if not essential!) skill for banders, and it isn’t really that difficult to learn . . . even for those of us who are used to a calendar-based system where every bird has a birthday on January 1. Join us as we take a tour through the WRP age codes. We’ll start by reviewing the typical passerine molt sequences, then we’ll take a look at the basic WRP system where every age is a combination of three letters denoting the bird’s cycle and plumage. Finally, we’ll demystify the new adjunct codes which add even more flexibility to the system. With plenty of photos and opportunities for practice, you’ll find yourself much more confident in employing these new ages!