Complex sentence: Very similar to the Greater Prairie-Chicken of the Great Plains, but slightly smaller (Pearson, 1917), the length of the bird was approximately 17 inches (43 cm) and weight was about two pounds (900 gm).
Split into simpler sentences: Very similar to the Greater Prairie-Chicken of the Great Plains, but slightly smaller (Pearson, 1917). Length of the bird was approximately 17 inches (43 cm) and weight was about two pounds (900 gm).