What colors are most common in caprimulgiform plumage?

In the order Caprimulgiformes, the plumage is characterized by colors that provide natural camouflage, with browns and grays predominating. These birds exhibit a range of earthy tones, including rufescent to ochreous browns, grays, white, and black.1

These colors are typically arranged in intricate patterns—such as streaks, spots, or mottling—that allow the birds to blend into their specific daytime environments, such as forest floors, gravelly terrain, or tree bark. Additionally, many species are dichromatic, often displaying distinct grayish and reddish color phases.1