Field assistants or interns usually receive room and board and sometimes a stipend.   Often there are opportunities to conduct independent projects that can provide the data for independent or honors research in Biology or Environmental Sciences at UNC-CH.

You can always try a search on google.com for such combinations as ...

'internship' plus a modifier such as 'wildlife', 'bird', 'animal', 'ecology', 'conservation', or other

or 'REU' plus any of these modifiers (REU = Research Experience for Undergraduates as funded by the National Science Foundation)

Ornithological Societies of North America
dozens (sometimes hundreds) of internships or field assistantships
mostly in the summer but also at other times
mostly in the US but also elsewhere
(positions usually posted 3-9 months in advance)

Texas A&M Department of Wildlife and Fisheries Sciences "Job Board"
hundreds of positions listed -- including internships

Animal Behavior Society
many postings by projects that are seeking field assistants
from around the world

The Student Conservation Association
summer internships in national parks and forests

Institute for Bird Populations
summer internships banding/surveying populations of birds
for conservation projects thrughout the US

Hastings Natural History Reservation, Carmel, California
operated by University of California, Berkeley
for field work on cooperatively breeding birds and other projects

U.S. Fish and Wildlife Service (Southeast Region) internships

Peace Corps
follow links to "What do volunteeers do?" and then "Environment"

National Marine Fisheries Observers
trains recent graduates for short-term jobs on fishing vessels
to collect catch and bycatch data on all U. S. coasts

www.campusaccess.com
environmental internships worldwide

Please send corrections and suggestions to ... Haven Wiley

Thanks for helping!