He really said “no nightingales” as a line in the show. Crowley said “no nightingales” to Aziraphale’s face as their relationship was slipping out of their grasp. Lol omg I still live here and I cannot get over it. Because they were nightingales. Because it was their song. Because it was like a dream. Because they were waiting. Because it’s over now.
It is the lark
The herald of the morn
No nightingale