very rough quick search, "just a bite" is already seriously dangerous for birds. and with beaks that's not a very big bite at all.
However! Since she's not really a bird, just has sci-fi DNA science going on, you can "round down" the severity of that. So, one piece of dark chocolate->one close call with theobromine poisoning sounds plausible to me
no subject
However! Since she's not really a bird, just has sci-fi DNA science going on, you can "round down" the severity of that. So, one piece of dark chocolate->one close call with theobromine poisoning sounds plausible to me