Hawkmen are fanatical followers of Kali who patrol the halls of the Temple. Along with Cavemen, they form the bulk of the enemies faced in the last area.
They appear as Cavemen with red 'hawk' masks and spears.
Hawkmen are essentially more advanced Cavemen. Like the Cavemen, they wander aimlessly until the Spelunker is seen, at which point they become 'aggro', running very quickly at the player in a murderous frenzy.
In addition to their ability to run very fast, frenzied Hawkmen have two extra skills that ordinary Cavemen don't.
Firstly, they can jump over obstacles when running, making it hard to shake them off by simply climbing upwards. Secondly, they attack by throwing the Spelunker rather than dealing plain contact damage, similar to how a Yeti or Shopkeeper does. This can be fatal if the Spelunker is near a pool of Lava, or if he is 'juggled' against a wall with no opportunity to recover.
The easiest way to deal with them is to simply avoid them, due to the inordinate amount of time it takes to kill them off for good without special weapons.
If you absolutely must kill one, a Shotgun, Pistol, or the Scepter will suffice. Like Cavemen, they are very easily stunned, and are also easily led into a pool of lava.