Photo courtesy of Byron Morgan
Canada geese are among the most ubiquitous animals in northern Illinois, and they probably don’t make too many people’s favorites list. Instead, many people view them as a nuisance — noisy, messy and, sometimes, mean.
Despite these undesirable traits, Canada geese do have some interesting behaviors as well. First, they mate for life, according to the Iowa Department of Natural Resources. And they are selective about their mate, choosing a partner that is about the same size as them, a practice called assortative mating.
Canada geese aren’t the only birds that mate for life. Other bird species known for long-term breeding partnerships include bald eagles, barn owls, blue jays, mute swans, ospreys, pileated woodpeckers, red-tailed hawks and sandhill cranes, according to The Spruce.