Colimbo del Pacífico vs Colimbo Grande

The Pacific Diver and Great Northern Diver can be distinguished by size and habitat preference. The Great Northern Diver is larger and more robust, while the Pacific Diver is smaller and more streamlined. Both species are found in marine environments outside of breeding season, but their breeding habitats differ significantly.

Size is a key differentiator: look for the larger, bulkier Great Northern Diver versus the smaller Pacific Diver. Breeding habitat can also help: Pacific Divers are found on Arctic ponds, whereas Great Northern Divers prefer larger lakes.

The Great Northern Diver is larger and bulkier compared to the smaller and more streamlined Pacific Diver.

The Pacific Diver breeds on freshwater ponds in the Arctic and Subarctic tundra, while the Great Northern Diver typically breeds on oligotrophic and mesotrophic lakes, avoiding tundra regions.