My son and I were discussing tailwheel endorsement for an aircraft such as a Tiger Moth.
I say yes it's needed, but he shows me FAR 61.31 which says tailwheel, and doesn't mention tailskid.
Am I right, because a Tiger Moth is not a tricycle gear, or does he have a valid point in his interpretation of the the FAR?

(i) Additional training required for operating tailwheel airplanes. (1) Except as provided in paragraph (i)(2) of this section, no person may act as pilot in command of a tailwheel airplane unless that person has received and logged flight training from an authorized instructor in a tailwheel airplane and received an endorsement in the person’s logbook from an authorized instructor who found the person proficient in the operation of a tailwheel airplane. The flight training must include at least the following maneuvers and procedures: (i) Normal and crosswind takeoffs and landings; (ii) Wheel landings (unless the manufacturer has recommended against such landings); and (iii) Go-around procedures. (2) The training and endorsement required by paragraph (i)(1) of this section is not required if the person logged pilot-in-command time in a tailwheel airplane before April 15, 1991.