Mating is for life. If a mate is lost, a new mate is often found
The average nest size is three to six eggs, with as many as 12 possible
Malting of adult birds occurs every summer for up to six weeks, rendering all birds flightless
Nests can be large at up to four feet across and are usually built on land that is near water
Geese are grazing animals that eat grasses and succulent plant material
An adult goose eats up to four pounds of grass daily
An adult goose drops an average of two pounds of fecal matter daily
Goose fecal matter has been linked to the spread of diseases and bacterial infections
Population growth ranges from 10 to 17% annually
Geese typically return to the same nesting and birth sites every year
They Aggressively Defend Their Nests
Geese generally aren’t afraid of humans since they tend to exist in such close proximity. This can sometimes lead to hostile interactions between humans and geese, especially if the goose is a parent defending its young. If a parent goose feels it or its babies are threatened, it may hiss, flap its wings, or snap at the human ー and in some cases, it will chase after them. If being chased by a large, angry goose isn’t scary enough to imagine, it’s even more terrifying when you know that geese have serrated tongues and bills. While they mostly use this evolutionary feature to graze on the fibrous stems of the grasses and strip tough grains from their stems, it can make their bite painful and is another reason to avoid making them feel threatened.
Help prevent human-goose conflict by keeping your distance. If you see a parent with babies, maintain a safe distance so the birds don’t feel threatened.
In the spring and fall, huge V-shaped flocks of geese can be seen ー and heard ーflying overhead in their seasonal migration patterns. Their loud honking calls can be obnoxious to humans on the ground, but those calls are vitally important to keeping the flock together. Geese often fly overnight, when temperatures are cooler and the air is less turbulent. The V-shape of their migration pattern allows them to conserve energy and travel farther distances ーup to 1,500 miles at a time!
They Poop – A Lot
Those who maintain golf courses, public parks, community open space, and private lawns may face the approach of goose migration season with a deep sense of dread. These landscapes ー generally flat, open spaces with no place for predators to hide and with a lot of grass for food ー are the perfect habitat for geese to thrive, especially if there’s a body of water nearby. And, where geese like to eat, there tends to be a large accumulation of goose waste as well. You can protect yourself from the accumulation of goose waste in your lawn by reducing the amount of open, grassy space around your home or community. Consider creating a wildlife habitat garden with dense plantings of native shrubs, trees and wildflowers ー which ironically will make the landscape less attractive to geese ー or using these Five Ways to Make Your Lawn Better. Your lawn ー and the other wildlife around your home ーwill thank you!
They Can Interfere With Airports and Airplanes
Canada geese are sometimes cited as the source of flight delays and even accidents. In some areas, they can block runways and prevent planes from taking off. They have also been cited on rare occasions as the causes of plane malfunctions. An analysis of Flight 1549, which made an emergency landing in the Hudson River in 2009, found that the plane had likely struck a flock of geese over the Bronx Zoo, which caused the engines to malfunction. This kind of occurrence is extremely rare and highly unlikely. As such, we don’t have recommendations for avoiding this scenario. Many airlines already take precautions to keep geese off of the runways and away from planes, including playing sounds of warning calls from other geese as a deterrent and employing specially-trained dogs to keep geese from congregating near airport runways.
They Can Carry Diseases
As mentioned above, geese can leave a large amount of feces and other waste behind on grassy areas. This can carry bacteria, parasites, and other diseases that mostly affect other birds, but which can sometimes be transmitted to humans (although this is very rare). You can avoid exposure by avoiding contact with goose droppings, and by ensuring proper disposal of landscaping waste.
Canada geese aren’t endangered or species of concern ー in fact, due to their ability to thrive in human-developed areas, their populations have steadily increased in the past several decades. However, they are still native wildlife and important players of the natural food web, and the ecosystems where they live. You can help protect geese by not feeding them and by keeping your distance.
Feeding geese human foods like bread and popcorn may seem like a fun way to bond with wildlife, but their systems aren’t able to process this kind of food and it can sicken them. Additionally, if they learn to expect food from humans, they can become dependent and lose their willingness to seek food in the natural environment. This also heightens the risk of aggressive interactions with humans.
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