Apied kingfisher in its first year of life in the feeding of three full siblings who would not have made it without the 's efforts. in this first year the bird does not raise any of its own offspring. in the second year of its life the pied kingfisher mates and raises two of its own offspring. after the first two years, what is the inclusive fitness of the pied kingfisher?

The correct answer is 2.5.

Inclusive fitness is the number of "offspring equivalents" that an animal raises or helps survive (we use the term "offspring equivalents" because they don't necessarily need to be offspring, as seen with the bird's siblings). Since this bird helps raise 3 siblings in the first year and 2 children in the second year, its offspring equivalent is 2.5 (.5 per sibling and offspring).