Loons

Range

Greener is more native, amber more introduced; paler is less certain. How this was decided

• Common Loon Gavia immer 68,975 observations
• Red-throated Loon Gavia stellata 15,681 observations
• Arctic Loon Gavia arctica 7,564 observations
• Pacific Loon Gavia pacifica 5,969 observations
• Yellow-billed Loon Gavia adamsii 1,231 observations