Up to 1 meter (3 feet)
Elongated with a long, flexible tail
Male: up to 20 feet; Female: up to 10 feet
Robust and cylindrical
7 - 30 centimeters
Small, elongated body with a long, thin snout
13-16 cm
Small and compact
6.5 to 10 feet
Large and robust
up to 2.5 cm
Streamlined
3-4 meters
Large and stocky
30-35 cm
Small to medium-sized with a compact body and short wings
4-6 feet
Long and slender
60-90 cm
Elongated and slender
Up to 15 inches
Flat, disc-shaped body
58 - 79 cm (23 - 31 inches)
Medium-sized goose with a stout body and a short neck
1.2 to 1.4 meters
Large and stout
23 to 26 cm
Small and slender
1.6 to 1.9 meters (5.2 to 6.2 feet)
Tall and slender
3-5 feet
Thick-bodied and short-tailed
Less than 2 feet
Medium-sized, sturdy, muscular
13.5-15.5 inches (34-39 cm)
Medium-sized, compact