Default Calendar: Display Birthdays, Anniversaries

[Fantasmic78]

Update: found it how to export also the birthday calendar (this only works by exporting ALL your calendars at once, but not on the birthday calendar itself).
And anyhow - that didn’t solve my issue - because the exported birthday calendar has each of the birthdays as 3 single events (birthday from last, current and next year), but it’s not a yearly event-series. So using this exported file once wouldn’t help much on my MM - after 2 years all the birthdary events would be gone again.
I will use a workaround now: I will create a separate calendar, where I enter all the birthdays manually (as yearly events). This calendar will then have a public address, and I can include it as separate calendar in MM.