Absolutely.
When it comes to worldwide standards, they're not competitive. In fact, CAPS has done four national surveys with post-docs, and what we have found so far is that the average salary is $52,000 and 25% of post-docs are earning less than $44,000, which is not at all competitive with the post-docs in other countries. For example, in Australia the post-docs are earning more than $80,000 per year. In the U.S., it's not as high as in Australia but it is still higher than in Canada.
That could be one reason why it's a little bit frustrating when they cannot get an academic position, and they are just desperately looking for other options, because the salary's literally not enough to pay the bills with.