Magizoologist, who study mainly magical creatures, have discovered that the feathers of an Augurey repels ink and are feared in the magical world by wizards, witches, etc... The reason why they fear this shy creature is because they believe when someone hears it's cry, death will soon follow. Though the cry of an Augurey does frighten people (and gave people heart attacks by passing their nesting sites), the fact is that the Augurey is incredibly harmless. Next to being feared by most of the 'Magical World' and have ink repelling feathers, the species are used as a biological weather forecaster.
The illustration above is a typically Augurey, the 'Irish Phoenix'. Named for mainly being found in Ireland and are related mainly to the Phoenix.