Affiliation: | 1. Cognitive and Behavioural Ecology Programme, Memorial University of Newfoundland, , St. John's, NL, Canada, A1B 3X7;2. Parks Canada, , Rocky Harbour, NL, Canada, A0K 4N0;3. Environmental Science (Biology), Memorial University of Newfoundland, , Corner Brook, NL, Canada, A2H 6P9 |