Which of the following statements is true regarding the size of the American Kestrel?

The American Kestrel is indeed approximately the same size as a Mourning Dove, which makes this statement true. Adult American Kestrels typically measure about 9 to 12 inches in length, while Mourning Doves are around 9 to 13 inches long. Their similar size helps naturalists and birdwatchers easily identify the kestrel in their habitats, as both birds exhibit swift flight patterns and similar profiles when viewed at a distance.

The other options do not hold true for the American Kestrel. For instance, it is not the largest hawk species; in fact, it is classified as a small falcon, not a hawk. Additionally, the size comparison to the Sharp-shinned Hawk is inaccurate as the Sharp-shinned Hawk, being a medium-sized hawk, is generally a bit larger than the American Kestrel. Lastly, regarding the wingspan, the American Kestrel does not have the shortest wings among falcons; it actually has a fairly typical wingspan for its size, which is vital for its hunting technique and aerial agility.