Birds of great variety occur throughout heraldry, at least in name A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P233. In truth, despite the proliferation of species, the actual depictions can sometimes be hard to distinguish! The dove is an example of this, closely related birds such as pigeon and stock dove are frequently mentioned in arms but visually almost identical. A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Dove The dove itself is said to represent “loving constancy and peace” The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P80, the other birds possibly some play on words with the family name (PIDGEON for example).