They trained interns on any part of the hospital operations that they wished. Many opportunities to learn. A low-stress work environment with very understanding and reasonable staff.
What I wish was different
I understand the unpaid intern situation, it's a non-profit wildlife refuge, but being paid would make this position an absolutely perfect situation.
Advice
Lean into the job and don't be afraid to handle the animals. You're going to get bit by something anyway, it's easier to just relax and enjoy the interactions with native wildlife. Study the Telephone protocols and Volunteer Manual, it makes you feel more confident in your first few days.