"Anybody who has watched the video knows that some birds have been killed and we really don't know how many that was," he said.
The video prompted the Toronto-based Humane Society of Canada to post a reward of $1,000 for information leading to the arrest of those shown in the internet posting.
Society executive director Michael O'Sullivan said the organization also got calls from people who wanted to help and they were directed to tip lines in both western provinces. O'Sullivan said he is pleased to hear of the arrests.
"I would like to commend all the members of the public who provided information. Canadians take cruelty to animals very seriously and they want to help out as best as they can," he said.