Known to turn and gore attackers when cornered, wild boar hunting was pursued by men interested in improving or showing off their military/fighting skills. The first part of the hunt was spent running the prey to exhaustion while on the hunters remain on horseback. Then when the animal cornered, the hunters would dismount and kill the animal with spears.
Sometimes to increase the danger, hunters would hunt during the boar's mating season when they were particularly aggressive.
Sources: http://www.sthubertsrangers.org/medieval_hunting.htm and http://en.wikipedia.org/wiki/Boar_hunting
|Boar Spear Head|
Hunting Season - May to December (http://www.sthubertsrangers.org/medieval_hunting.htm)
According to one of my sources (http://www.sthubertsrangers.org/medieval_hunting.htm), the Eurasian Brown Bear was roughly half the size of our North American Grizzly Bear. According to them, hunting a Grizzly using medieval weaponry and tactics would be suicidal.
As far as I have gathered, bear hunting was done using mastiff dogs to track and distract the bear until the hunter could get a clean shot using a bear hunting spear. The bear spear resembled a boar spear (pictured on the right), except it had a larger head (more like a bay leaf) and a longer and harder shaft so that it could be propped on the ground to help the hunter handle the struggling animal on the other end.
Sources: http://www.sthubertsrangers.org/medieval_hunting.htm, http://en.wikipedia.org/wiki/Bear_spear, http://en.wikipedia.org/wiki/Boar_spear, and http://en.wikipedia.org/wiki/Bear_hunting
Either prey should add plenty of drama to any story.