The male Canada goose weighs between 5.7 to 14.3 lbs; and the female is slightly lighter ranging from 5.3 to 12.1 lbs. The black head and neck with a white chinstrap are recognizable characteristics of the Canada goose. Of all the sub-species of geese, the Canada goose is on average the largest. They breed in both Canada and northern United States; and, a large portion of the population resides in the Great Lakes region. Overhunting and a loss of habitat in the late 19th century and early 20th century resulted in a serious decline. However, with improved game laws and federal, state and and private programs, the population increased in their major habitat ranges. Canada geese are primarily herbivores though they will sometimes eat small insects and fish. During migration, Canada geese have resting areas where they join with others.