Critical Breeding Periods for Raptor Species of the NWT - 2016 Summary Wildlife File Report 147. Critical Breeding Periods for Raptor Species of the Northwest Territories 2016. Wildlife File Report 147. Current Resource Critical Breeding Periods for Raptor Species of the NWT - 2016 PDF • 1.49MB • Issued January 1, 2016 Download Critical Breeding Periods for Raptor Species of the NWT - 2016