From a reader:
Hi Fr. Z,
I had a question about priestly "headware." I am glad to see that the biretta is coming back in many places, but my question deals with the black zucchetto. Obviously you still see bishops and the Holy Father wearing the zucchetto, but did priests ever wear them frequently? And, if so, during what type of occasion would a priest wear the zucchetto?
While Popes, cardinals, and bishops (and bishops-elect) use the zucchetto, and some abbots, etc., normal garden variety priests and monsignors do not use the black zucchetto liturgically.
The only time they would use it would be to keep their bald spot warm in their drafty homes.