The great hornbill and the toucan both eat the same fruit, insects, and nuts. they both live in the rainforest. their large bills function to get food and also as warning coloration. which of the following is a limiting factor to the toucan population?
a) overlapping breeding seasons
b) bill coloration
c) genetic variability
d) competition

The correct answer is option D) competition.

The given case says the great hornbill and the toucan share the same food source in the same habitat, which means there is a competition for the food between great hornbill and toucan. As the hornbill's large bills help them in getting food, they have more chances of getting food as compared to toucans. As a result, the food source of the toucan would be exploited by great hornbills. So, in this case, the limiting factor for toucans would be competition for the food.

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