Also, note overall dark head with a clearly demarcated white throat and short bill. During the breeding season, they have a silvery head, black-and-white stripes on neck, and white patches on back. Double-crested Cormorants have a longer neck and do not have white on the neck like nonbreeding Pacific Loons. Nonbreeding Red-throated Loons have more extensive white on the face and neck than nonbreeding/immature Pacific Loons. They are smaller than Common Loon with a shorter bill. The Pacific Loon and Common Loon in nonbreeding plumage look pretty similar at a glance. Daggerlike bill typically held horizontally. Rare stray to inland reservoirs and lakes during migration and winter. Nonbreeding adults are dark gray-brown above with very little white feather edging; and whitish below, sometimes with a neat dark line or chinstrap across the throat. During migration, often found in large flocks. In flight, often holds head level with the body. The Pacific Loon and Common Loon in nonbreeding plumage look pretty similar at a glance. They are smaller than Common Loon with a shorter bill. Catches fish by diving, using feet for propulsion. They also hold their bills up while Pacific Loons hold their bill straight. In the past, the Arctic Loon and Pacific Loon were grouped together under the name “Arctic Loon.” The Yellow-billed Loon closely resembles the Common Loon, although it is usually larger. They have a checkered back and striped collar whereas Pacific Loons have a barred back and vertical striping on the neck. Nonbreeding Red-throated Loons have more extensive white on the face and neck than nonbreeding/immature Pacific Loons. Bill is less heavy than Common Loon's but heavier than Red-throated Loon's. Also, note overall dark head with a clearly demarcated white throat and short bill. Juveniles are similar to nonbreeding adult but usually show neat pale edges to feathers. During the breeding season, they have a silvery head, black-and-white stripes on neck, and white patches on back. Found in large numbers off the West Coast of North America in winter, when they are gray above and white below. However, the Pacific has the black chinstrap, shorter neck, and is slightly smaller (the chinstrap may sometimes not be visible).The Common has a larger, flatter bill and a “collar” around the neck that the Pacific lacks. Arctic Loon is nearly identical, but has a flatter crown and a white patch at the rear that Pacific Loons lack. Breeding birds have pale gray head and nape with vertical black-and-white stripes on the neck and thick white stripes on the back. Has a shorter neck than other loons. Frequently dives to catch fish; often found in loose flocks with species of loons. Formerly considered a subspecies of the Arctic Loon, the Pacific Loon is now classified as a full species. Breeds on lakes and ponds in tundra. Free, global bird ID and field guide app powered by your sightings and media. Head and neck are gray. However, the Pacific has the black chinstrap, shorter neck, and is slightly smaller (the chinstrap may sometimes not be visible).The Common has a larger, flatter bill and a “collar” around the neck that the Pacific lacks. © Jay McGowan | Macaulay Library New York, March 26, 2015 View Full Species Account They also show more extensive white on the sides than Pacific Loons. The Arctic Loon is only an occasional nonbreeding visitor to British Columbia. © Ian Davies | Macaulay Library Breeding Red-throated Loons have a solid black back and a red throat whereas breeding Pacific Loons have a barred back and a black throat. Comprehensive life histories for all bird species and families. The body is black with white markings. Take Merlin with you in the field! Nonbreeding Arctic Loon lacks a "chinstrap" like nonbreeding Pacific Loons. Nonbreeding Common Loon has white eye-ring; Pacific Loon has white cresent above and in front of eye. It has a smoothly rounded head and neck and a straight bill. Nonbreeding birds often show less white on the back that other loons. Most nonbreeding birds have a dusky chinstrap, but this can be difficult to see. They also hold their bills up while Pacific Loons hold their bill straight. They also have a jagged collar around the neck while the neck on nonbreeding Pacific Loons is smooth. Some birds in summer don't molt into breeding plumage; these have whiter necks with dusky vertical stripes. Nonbreeding birds often show less white on their back that other loons. Arctic Loons are rarely encountered in the Lower 48. Additionally, the Pacific loon has a call similar to that of its relative the Common loon, it is a loud, eerie, oo-loo-lee wail or yodel that can travel for miles and is typically heard during the loon’s breeding season. Red-throated has thinner bill (usually tilted slight up) than Common Loon. Nonbreeding/immature birds often have a dusky chinstrap. Similar to: Red-throated Loon. Nonbreeding/immature Common Loons are larger with a thicker bill. Most nonbreeding birds have a dusky chinstrap, but this can be difficult to see. Common Loons have a thicker bill than Pacific Loons. In breeding plumage, the top of the head and back of the neck are pale gray, lighter than the face. Your Online Guide To Birds And Bird Watching.
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