@pastanaga - Not necessarily. It depends on what you want to do and where you are willing to do it. You have a much higher chance of getting somewhere if you're willing to go to where the job markets are hiring, rather than trying to stay in one place.
I would also consider getting additional qualifications depending on the job you want. You don't necessarily have to get a Masters degree in order to work as a park ranger, for example, but there are various diplomas and other courses that could bump your chances.
A degree in zoology is really just a first step and you've got to decide where to go with it afterwards. One way to help you decide is to investigate what previous graduates from the same or similar programs ended up doing.