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Which galliform bird is the smallest member of the order?

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A peacock stands with its vibrant green and blue tail feathers fully fanned out in display, showing eye-like patterns across the plumage. — Galliform Blue, or Indian, peacock (*Pavo cristatus*) displaying its resplendent feathers.

The smallest members of the order Galliformes are the sparrow-sized painted quail (genus Excalfactoria). These birds measure approximately 13 cm (5 inches) in length and weigh about 45 grams (1.5 ounces).1