Which species is characterized by dark, triangular patches underneath the wing feathers?

The prairie falcon is characterized by distinct dark, triangular patches located underneath its wing feathers. These markings are a key identification feature that helps differentiate it from other falcons. Prairie falcons typically have a light brown and cream-colored body with darker streaks, and these triangular wing patches become particularly discernible when the bird is in flight. The distinctive coloration and pattern on the wings serve various purposes, including camouflage in its natural habitat and signaling to other birds during social interactions.

In contrast, other falcon species have different markings or colorations that do not include these specific triangular patches. The peregrine falcon, for instance, has a more solid color scheme with a dark cap on its head and lacks these distinctive wing markings. The merlin features broader wings with no patches as well, while the American kestrel has vibrant colors and different wing patterns, including a distinctive two-colored wing. Understanding these unique physical characteristics is essential for proper identification in the field.