Just as Spyderco is associated with a spider, byrd Knives resemble various species in the avian world. The byrd line of tactical knives present a cost effective alternative to Spyderco's main line of high-performance tactical knives. The comet-looking blade hole is a trademark of the byrd line and is synonymous with the stringent quality requirements, high performance materials and manufacturing, which go into every byrd tactical knife.