Canada goose
Branta canadensis
The Canada Goose is one of the most recognisable and widespread waterfowl in the UK. Known for its distinctive black head and neck with a white chinstrap, this large and adaptable bird is often found in a variety of habitats including lakes, ponds, rivers, and urban parks. Canada Geese are social birds, often seen in large flocks, and are noted for their migratory patterns and distinctive honking calls.
How to Identify a Canada Goose:
- Head: Black with a prominent white chinstrap that extends from the throat up to the sides of the face.
- Body: Brownish-grey with a lighter chest and belly. The back is darker, giving a slightly mottled appearance.
- Beak: Black, short, and strong, suitable for grazing on grasses and other vegetation.
- Wings: Long and broad, with dark brown flight feathers. In flight, the wings appear broad and the bird’s neck is extended.
- Legs: Black, strong, and webbed, aiding in swimming and walking on land.
Description and Statistics:
- Size: 90-100cm in length.
- Wingspan: 160-175cm.
- Weight: 3.5-6.5kg.
- Sexual Dimorphism: Males and females are similar in appearance, although males are generally slightly larger. Both sexes have the same distinctive plumage.
Breeding, Nesting and Rearing Habits:
- Canada Geese are monogamous, forming lifelong pair bonds.
- Nests are usually built on the ground near water, often on small islands or elevated areas to avoid predators.
- The female lays a clutch of 4-7 eggs, which she incubates for about 25-30 days while the male guards the nesting site.
- Goslings are precocial, leaving the nest within 24 hours of hatching. They are capable of swimming immediately and stay with their parents for several months.
The Canada Goose in the UK:
The Canada Goose is a non-native species in the UK, first introduced in the 17th century as an ornamental bird. Over time, they have established a significant population due to their adaptability to various habitats and food sources. Today, they are a common sight across the UK, thriving in both rural and urban environments.
Sources:
- The RSPB: https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/canada-goose/
- The British Trust for Ornithology: https://www.bto.org/understanding-birds/birdfacts/canada-goose