Ignore this post I made, poisson is used for rates whilst binomial is used for proportions
If I'm understanding you correctly your outcome is a rate, and if that is the case then you do need to use a Poisson and (I think) canonical link

I just used the default family=gaussian. My variable I want to model is visitation rate, which is recorded in percent (0-100%). If I had a feeding station out for 14 days and it was used by small mammals 7 out of 14 days than it had a visitation rate of 50%.

I don't understand why you want to use a poisson here. That doesn't make sense to me at all. Do you have the original data for # of visits and # of days? If you have that then why not use a binomial family?