"Monday: Falmouth Falcons versus Pride of Portree, eleven o’clock, Exmoor. An Invisibility Charm has been put upon new stadium. Please collect Re-Visibility Spectacles from ticket office or you will not be able to find the pitch."
-- forthcoming Match Information published in the Daily Prophet (DP1)
robes: dark gray with white, falcon-head emblem on chest
motto: “Let us win, but if we cannot win, let us break a few heads.”
They are known for hard play.
Falmouth, a port town in Cornwall, has football team (Falmouth Town FC), a rugby union team (Falmouth RFC) and a cricket team (Falmouth CC) noted on its Wikipedia entry, but no Quidditch team (Wikipedia: Falmouth, Cornwall).
According to Unfogging the Future, the Falcon as a tea leaf symbol means “a deadly enemy” (PA6).