The male Canada goose has been in fighting mode as he watches over his brood in the parking lot near the Park West Diner in Woodland Park, Passaic County.
Over the weekend, he knocked one man down when he inadvertently came too close to the nest.
The bird started pecking away at his face and left the victim with bruise marks.
The male geese are known to be aggressive this time of year because they are protecting their eggs.
"If you go near their nest, they will come after you, they don't bite, but they'll clam on you and you'll have a black or blue mark that will last a month or so," said Paterson Animal Control Officer John DeCanto.
The male is always on watch and always on the prowl.
Some people like to test fate, but there is no backing down for this waterfowl - he keeps his focus on his future and is ready to attack at a moment's notice.
"Just like us, you know we're here to protect our little ones and we would do anything in our power to protect them, it's the same thing," DeCanto said.
Canada geese are monogamous and so the male will watch over his mate for the rest of their days which could run anywhere from 20 to 25 years.
The male doesn't stray too far away and is ready to pounce if a perceived predator gets too close.
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