Abstract: An ultra-sensitive bite indicator having a mount, a spring and a wire, is attached to a distal end of a fishing rod, with the mount having a through-bore. The spring is adjustably mounted within the through-bore, and the wire is connected to the spring at one end and to a loop, constructed and arranged to receive fishing line, at another end. In another embodiment of this invention, an ultra-sensitive bite indicator comprises a mount portion attached to a fishing rod and an adjustment portion coupled to the mount portion. The adjustment portion is movable between a first position angled away from the fishing rod and a second position lying substantially flat against the fishing rod. A loop, constructed and arranged to receive a fishing line, is attached to one end of the adjustment portion. In each embodiment, the bite indicator is difficult to damage or break. In addition, the sensitivity of each embodiment of the bite indicator can be adjusted for detecting fish of various sizes and weights.