Black swift (Cypseloides niger) have been listed as an Endangered Species by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). In Jasper National Park, black swifts nest in canyon waterfalls and may be affected by decreases in water flow on account of decreased snow pack and glacial melt, and specific recreational activities that may disturb nesting birds. Data are collected by trained observers during the breeding season to identify breeding sites to inform management action.