| Methods |
Areas in the Williston Reservoir watershed that potentially had ice-free sites during the winter were solicited from local residents, aircraft pilots, and personnel from resource agencies familiar with the watershed. Based on the area's likelihood to have ice-free sites throughout the winter and their potential to be used by wildlife, a late-winter helicopter survey was conducted to investigate the identified areas. The number of ice-free sites were enumerated and their characteristics (e.g., size, depth) were recorded. All wildlife observed we counted and, where possible, classified to age and sex.
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