A
tail is the decorative stroke on the letter
Q. It can also be found on the capital letters
R and
K that have a decorative stroke. On the letters
g,
j,
p,
q, and
y the descender is also called a tail.
Fonts used - Monotype Corsiva (for the words), Perpetua Titling (to create the mice with the letters Q, O, and V).
And if you're still confused about tails:
images © Kelci Stephenson 2011