I have domestic geese which are fat, flightless, and as aggressive as guard dogs. They are beautiful to watch
as they glide across my pond and intimidate the smaller,
nesting wild Canada Geese. Somehow, they have worked
out a "pecking order" and co-exist.
It's interesting to note the difference between domestic geese and wild geese: Wild geese have a slimmer, more horizontal body posture and are excellent flyers. Domestic geese have
a large fat area toward their tail which causes a more upright posture and prevents flight.
Above - the geese get along fine until the wild ones get near the corn feeder.
Below - an original watercolored etching - Sleeping Geese - copyright, Sandy Scott