The main device (symbol) in the Fairfowl blazon is the parrot. The three main tinctures (colors) are vert, gules and argent .
The deep green colour that is so often observed in heraldry is more properly known as vert. According to Wade, the use of this colour signifies “Hope and Joy”, but may also represent, rather delightfully, “Loyalty in Love” 1. It has other names also, the French call it sinople, perhaps after a town in Asia Minor from where the best green die materials could be found 2. More fanciful heralds liked to associate it with the planet venus and the precious stone emerald 3. More strangely, there is some evidence that the term prasin was anciently used, being the Greek for the vegetable we call the Leek!
Red in heraldry is given the name Gules, sometimes said to be the “martyr’s colour”4. The colour is also associated with Mars, the red planet, and the zodiacal sign Aries 5. Later heralds of a more poetical nature would sometimes refer to the colour as ruby, after the precious stone.6.
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 7. In a sketch or drawing it is represented by plain, unmarked paper 8.
The parrot is a fairly recent usage, but the ancient form of popinjay was more common 9. Commonly coloured vert (green) with beak and legs gules (red) it is usually depicted with a high degree of realism. 10