00000nam 2200000zi 4500 9.921458 CaOODSP 20240527135432 m o d f cr |n||||||||| 230124s1953 oncb o f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn-nt CW66-956/1953E-PDF McEwen, E. H., author. Aerial beaver survey : Upper Mackenzie Delta Beaver Sanctuary, September 1953 / E.H. McEwen. [Ottawa] : [Canadian Wildlife Service], [1953] 1 online resource (4 [1] pages) : map text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. Caption title. "On September 15, a second aerial beaver survey was conducted by W.E. Stevens and myself, assisted by Warden Sprue, Fort McPherson, in that portion of the Sanctuary enclosed by the Arctic Red River, Peel River, and the Yukon boundary. This survey was a continuation of the investigation on the reported occurrence of disease in the beaver population"--page 1. American beaver Northwest Territories. Mammal surveys Northwest Territories. Aerial surveys in wildlife management Northwest Territories. Castor du Canada Territoires du Nord-Ouest. Mammifères Inventaires Territoires du Nord-Ouest. Inventaires aériens dans l'aménagement de la faune Territoires du Nord-Ouest. Canadian Wildlife Service, issuing body. PDF 324 KB https://publications.gc.ca/collections/collection_2023/eccc/cw66/CW66-956-1953-eng.pdf