Tinamus major
Size: They grow to about 17 inches (43 cm) long and can weigh as much as 2.4 pounds (1.1 kg). Behavior: Great tinamous are solitary except during mating season.
What does a tinamous look like?
Tinamous are plump, compact birds with slender necks, small heads and, usually, short, decurved bills, though a few have long bills. Females are usually larger than the males.
Is the tinamous extinct?
The Magdalena tinamou, Crypturellus erythropus saltuarius, is a member of one of the most ancient bird families, the tinamous. It is endemic to the Magdalena River Valley in Colombia, and has been considered possibly extinct, as there are no confirmed records since the type specimen was collected in 1943.