Ganso Cenizo vs Cauquén Común

The Cape Barren Goose and Upland Goose can be distinguished by their bill and facial features. The Cape Barren Goose has a distinctive greenish-yellow cere and a more robust bill, while the Upland Goose lacks this cere and has a more slender bill. Both species are large, ground-dwelling birds, but their facial features are the most reliable distinguishing marks.

Look for the greenish-yellow cere on the Cape Barren Goose's bill, absent in the Upland Goose. Note the grey plumage with black wing spots of the Cape Barren Goose, contrasting with the Upland Goose's more varied coloration.

The Cape Barren Goose has a uniform grey plumage with black spots on the wings, whereas the Upland Goose typically shows a more contrasting pattern with white and brown tones, especially in males.