The zoo has given an update on guest cougar, Charlie. He is adjusting well though he doesnt like horse meat very much. He is in excellent health and is between 3-7 years old. They are almost certain he is a captive born cougar based on health and behaviour. The MNR is still investigating and hasnt made a decision about his future.
On a side note in the article they mentioned that before Charlie's arrival they were considering another endangered cat for the old cougar exhibit. No mention of what though. The plans are on hold while they wait to find out what will happen with Charlie.
Captured cougar in Peterborough zoo a picky eater | Toronto Star