Up to 3 feet (0.9 meters)
Thick and cylindrical
22-27 inches
Medium to large-sized
50 - 70 cm
Medium to large-sized, muscular
20-27 inches
Medium-sized
Muscular and stocky
Large and muscular
10-15 inches
Slender
2 to 4 feet (60 to 120 cm)
Slender and cylindrical
18-24 inches
Medium-sized, broad wingspan, long legs, and feathered feet
2-25 mm
Long and narrow with short elytra
55-75 cm
Medium-sized, stocky
Average length of 15-33 inches
Cylindrical and smooth
9 - 11 cm
Small and compact
Approximately 7 to 9 cm (2.8 to 3.5 inches).
Small and compact with short wings and a long bill.
14 to 18 inches (35 to 46 cm)
Small and compact with a large head and a short, thick neck.
20-25 cm
Compact and stocky
8-11 cm
Small and compact with short wings
Up to 5 feet
Cylindrical and stout