Yaquina Bay, at the town of Newport, is one of the more productive sites on the Oregon coast. On this visit, high winds reduced the number of birds that were out and about, but there was still a lot to see.
Common Loon with the catch of the day
Red-throated Loon
Pelagic Cormorant
Horned Grebe
Horned Grebe (above) and Western Grebe
Brown Pelicans
Long-tailed Duck
Surf Scoter
The flats behind the Hatfield Marine Science Center. There were lots of Mew Gulls, some Brant, and Northern Pintails. Note the Peregrine Falcon at the base of the fallen tree.
California Gull
Large numbers of California Sea Lions loaf on the jetties and docks on the bay.
Ethical Birder 
John, are loons migratory? We’ve been along the Coast more often this year and I haven’t managed to spot any. Any tips?
Jane
Jane, All of the loons nest north of Oregon, migrating south in autumn. Several species are easy to spot along the coast through spring. They fly past many of the “seawatch” sites in great numbers, and you can usually see a few in any bay along the coast.