加拿大雁
Canada geese range from in length and have a wingspan. Among standard measurements, the wing chord can range from , the tarsus can range from and the bill can range from . The largest subspecies is "B. c. maxima", or the giant Canada goose, and the smallest (with the separation of the cackling goose group) is "B. c. parvipes", or the lesser Canada goose. An exceptionally large male of race "B. c. maxima", which rarely exceed , weighed and had a wingspan of . This specimen is the largest wild goose ever recorded of any species.