I have never heard any other airline other than BA use "THE SPEEDBIRD" - we always piss ourselves laughing (which is very unfortunate for the next person who has to fly in our seats). [It always seems to be some pompus person who says it!]
Needless to say as others have mentioned, we too become "THE XXXX" , and a a miracle ensues - THE SPEEDBIRD, suddenly changes callsign, and becomes just SPEEDBIRD!
Always fantastic for a laugh. Keep it up!