The main device (symbol) in the Ravenhill blazon is the raven. The two main tinctures (colors) are sable and argent.
Sable, the deep black so often found in Heraldry is believed to named from an animal of the marten family know in the middle ages as a Sabellinœ and noted for its very black fur 1. In engravings, when colors cannot be shown it is represented as closely spaced horizontal and vertical lines, and appropriately is thus the darkest form of hatching, as this method is known 2. Although it may seem a sombre tone, and does indeed sometimes denote grief, it is more commonly said to represent Constancy 3.
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) 4. In a sketch or drawing it is represented by plain, unmarked paper 5.
Birds of great variety occur throughout heraldry, at least in name 6. In truth, despite the proliferation of species, the actual depictions can sometimes be hard to distinguish! The crane, heron and stork are commonly to be found on a coat of arms but all tend to share the same stylised appearance 7. The raven is amongst the mjaor bird species to appear in heraldry.