As part of its mandate to conserve migratory birds, Environment and Climate Change Canada's Canadian Wildlife Service (CWS) uses helicopters to conduct annual surveys of waterfowl and other migratory birds over various suitable habitats in eastern Canada (Ontario and Quebec, among others). Data from these surveys and migratory bird banding helps track the trends, abundance and distribution of migratory bird species – three parameters essential to the sound management of bird populations by CWS.CWS would like to retain air charter services (rotary-wing aircraft; hereafter, helicopter) in Ontario and Quebec.Helicopter service required for the principal mission involves flying a helicopter at low altitude (± 30 m) and reduced speed (± 90 km/h) over all waterbodies and wetlands (lakes, rivers, streams, ponds, bogs, etc.) in the survey plots in order to count and identify waterfowl species and other migratory birdsSecurity Requirement: N/A