You've probably all thought of this already, but just in case you're wondering what sentiments to use for all the wonderful Angry Birds cards people are making, "A LITTLE BIRDIE TOLD ME" and "HAPPY BIRD-DAY" fit perfectly! ie Don't be ANGRY! Have a HAPPY Bird-day! or A little bird told me you're 6! Of course if the recipient is older, it could be an An ANGRY BIRD told me you're 60!