The insect in this video might be mistaken for a hummingbird or large bee, but it is a moth of the sphingidae family. They are commonly known as hawk moths, sphinx moths, or hummingbird moths. There are six species in Alberta. I believe this one is a Hummingbird Clearwing Moth. It is found throughout Alberta and is active in the daytime.
These moths are known for their ability to hover while feeding on flower nectar. You can see the long curved proboscis. With a wingspan of about six cm, you can see how they are sometimes mistaken for hummingbirds!
The video was taken in Peace River, in northern Alberta, on June 10, 2015.