The wyver, who becomes wyvern in the 16th century, and takes a new form under the care of inventive heralds, was in the middle ages a lizard-like dragon, generally with small wings. Sir Edmund Mauley in the 14th century is found differencing the black bend of his elder brother by charging it with three wyvers of silver. During the middle ages there seems small distinction between the wyver and the still rarer dragon, which, with the coming of the Tudors, who bore it as their badge, is seen as a four-legged monster with wings and a tail that ends like a broad arrow. The monster in the arms of Drake, blazoned by Tudor heralds as a wyvern, is clearly a fire-drake or dragon in his origin.
The unicorn rampant was borne by Harlyn of Norfolk, unicorn’s heads by the Cambridgeshire family of Paris. The mermaid with her comb and looking-glass makes a 14th-century crest for Byron, while “Silver a bend gules with three silver harpies thereon” is found in the 15th century for Entyrdene.
Concerning beasts and monsters the heraldry books have many adjectives of blazonry which may be disregarded. Even as it was once the pride of the cook pedant to carve each bird on the board with a new word for the act, so it became the delight of the pedant herald to order that the rampant horse should be “forcené,” the rampant griffon “segreant,” the passant hart “trippant”; while the same hart must needs be “attired” as to its horns and “unguled” as to its hoofs. There is ancient authority for the nice blazonry which sometimes gives a separate colour to the tongue and claws of the lion, but even this may be set aside. Though a black lion in a silver field may be armed with red claws, and a golden leopard in a red field given blue claws and tongues, these trifles are but fancies which follow the taste of the painter, and are never of obligation. The tusks and hoofs of the boar, and often the horns of the hart, are thus given in some paintings a colour of their own which elsewhere is neglected.
As the lion is among armorial beasts, so is the eagle among the birds. A bold convention of the earliest shield painters displayed him with spread wing and claw, the feat of a few strokes of the brush, and after this fashion he appears on many scores of shields. Like the claws and tongue of the lion, the beak and claws of the eagle are commonly painted of a second colour in all but very small representations. Thus the golden eagle of Lymesey in a red field may have blue beak and claws, and golden beak and claws will be given to Jorce’s silver eagle upon red. A lure, or two wings joined and spread like those of an eagle, is a rare charge sometimes found. When fitted with the cord by which a falconer’s lure is swung, the cord must be named.
Monthermer bore “Gold an eagle vert.”
Siggeston bore “Silver a two-headed eagle sable.”
Gavaston, earl of Cornwall, bore “Vert six eagles gold.”
Bayforde of Fordingbridge sealed (in 1388) with arms of “An eagle bendwise, with a border engrailed and a baston.”
Graunson bore “Paly silver and azure with a bend gules and three golden eagles thereon.”
Seymour bore “Gules a lure of two golden wings.”