Description of this innovative, minimally invasive, photographic methods for studying quoll reproduction in the wild can be found here;
https://www.researchgate.net/publication/329033528_REVIEW_OF_A_NEW_INNOVATIVE_TECHNIQUE_USING_BAITED_CAMERA_TRAP_DESIGN_FOR_NON-INVASIVE_POUCH_MONITORING_AND_GENDER_DETERMINATION_OF_THE_NORTHERN_SPOTTED-TAILED_QUOLL_DASYURUS_MACULATUS_GRACILIS