Head Size: Generally, ganders have larger heads and beaks than geese.
Neck Length: Ganders often have longer necks than geese.
Body Size: Ganders are typically larger in overall body size compared to geese.
Plumage: While coloration can vary depending on the species of geese, ganders often have more vibrant plumage than geese. This includes brighter colors and more distinct markings.
Behavior: Ganders are usually more aggressive and territorial than geese, especially during breeding season. They may display behaviors like hissing, wing flapping, and chasing to defend their territory or mates.
Sound: Ganders typically have a deeper, louder honk compared to geese.