The mountain hona (Arctonanus alpinus) of the European Alps is the smallest of the the honas (genus Arctonanus) and the most secretive.  These 5 kg creatures are generally herbivorous, but show a definite tendency towards insectivory in the summer, when they shed their winter plumage and adopt a sleek, long-necked silhouette (as seen above).

    Mountain honas (at least, the males) are highly territorial, with adult cocks fiercely guarding their feeding grounds.  These otherwise shy creatures will often kill each other over land disputes, but females and juveniles may travel with impunity.