It would require extensive modification -- primarily the addition of a MINIMUM of 1 square foot of ventilation per bird. (The best way to judge if your ventilation is adequate is to enter the coop on a hot, sunny day. If it's warmer in than out you need to add more ventilation). But I'm sure it's possible.
Chicken wire is great at keeping chickens in, but it will not keep raccoons, coyotes, stray dogs, and many other common predators out.
The usual guidelines are as follows, for each adult bird you need:
4 square feet in the coop,
10 square feet in the run,
1 linear foot of roost space
1 square foot of permanent, 24/7/365 ventilation (windows closed in the winter and the pop door closed at night don't count).
Commercial-style intensive management -- including such things as debeaking and the use of mechanical ventilation -- can reduce some of these numbers but the place to get advice on this would be your local ag extension.
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