It also serves as something else: As the Selkie do not celebrate birthdays, the day of rebirth of nature, namely the day of the Spring Festival, serves as a collective 'birthday'. The Selkie count the age in springs, someone of sixty springs therefore celebrated the Spring Festival sixty times. In the way of presents, they are usually exchanged on the days following the festival itself.
Myth and Legend
Spring Festivals today
Scientists of various universities worldwide have observed, that there is a erratic jump in the birth rates in the Free Lands nine months after the Spring Festival.