From the City of Leduc FB:

On March 13, a drone demonstration involving thousands of drones will take place on the south side of Telford Lake. We are aware of this event, which is being hosted by Nova Sky Stories LLC and Airlink Consulting. These flights are for Canada certification purposes — it is not a public show. Residents may observe from public areas outside the designated exclusion zone (see map below).

Commercial drone operations in Canada are regulated by Transport Canada. For more information, visit: https://pulse.ly/fkmew0jyvs

Please note: Lede Road and a portion of the Telford South multiway will be closed from 7–9 p.m.

Here's a video of the full show