Final answer:
The most likely true answer is D. Both A and B. Early human colonization devastated larger bird species through hunting, while late human colonization devastated natural habitats and food sources.
Step-by-step explanation:
The most likely true answer to the question is D. Both A and B. Early human colonization devastated the larger species of birds through hunting (Option A). Late human colonization devastated the natural habitats and food sources, such as flower nectar and fruit of the native species (Option B). These factors combined led to the extinction of a significant number of bird species in the Hawaiian Islands.