On Aggression Of Australian Magpies

With aggression they defend their territories and their source of food And it is said of them that they have a call for their every mood I have seen them aggressive to other birds and even to their own kind The black and white Australian magpies to violence are often inclined From their territorial borders only the other day I have seen them chase crimson rosellas away Among the more aggressive of Australia's song birds they surely do rate Birds they do not see often in their territories they do not tolerate Yet among Australia's finest feathered songsters they surely belong And once seen and once heard one can never again get them wrong They have even been known to attack humans in their nesting time Violence towards others among Nature's creatures is never a crime I have seen them attack and kill blackbirds and silver-eyes To Nature's beauty there can be a dark side i have come to realize.