Zoology and wildlife biology are actually quite different.
Wildlife Bio is usually a more management-oriented program designed for people who want to work in the natural resources field, so this degree usually digs into a lot more bureaucratic b.s. than zoology.
Zoology is really more about the animals themselves and their biology and life histories as opposed to the management of their environment.
I've been looking into similar things myself, I'm currently in a 2 year Natural Resources program but I am going to either University of Vermont for my Bachelors in zoology or Colorado State. Vermont has a really good graduate program, masters in natural resources with a concentration in watershed ecology. But most people with an undergraduate degree in zoology pursue graduate programs in biology, and at that point you can narrow down what you want to study within biology for your masters / phd education.
