Lauff, Randolph F. (Oct–Nov 2007). Johnson, D.H.; Van Nieuwenhuyse, D.; Duncan, J.R. (eds.). First nest records of the Boreal Owl Aegolius funereus in Nova Scotia, Canada(PDF). Proc. Fourth World Owl Conf. Project Owl Net. Vol. 97, no. 4. Groningen, The Netherlands: Ardea. pp. 497–502. Retrieved 26 May 2015.
Finkelstein, Maxwell W. (9 February 2010). "Cape Breton Highlands National Park". The Canadian Encyclopedia. Historica Canada. Archived from the original on 11 January 2018. Retrieved 29 March 2011.
Finkelstein, Maxwell W. (9 February 2010). "Cape Breton Highlands National Park". The Canadian Encyclopedia. Historica Canada. Archived from the original on 11 January 2018. Retrieved 29 March 2011.