"Harry, I couldn't risk sending Hedwig. Ever since the World Cup, the Ministry's been intercepting more and more owls and she's too easily recognized. We need to talk, Harry, face to face. Meet me in the Gryffindor Common Room, at 1:00 this Saturday night. And make sure you're alone. Sirius. P.S.: (By the way,) The bird bites."
January 1, 1970
https://en.wikiquote.org/wiki/Harry_Potter_and_the_Goblet_of_Fire_(film)