These small agile gulls are predominantly pelagic, but can often be seen from shore and even idling around lower estuaries. It is found primarily on salt water and does not usually forage in dumps and pastures as most gulls do; rather it stays over open ocean, along beaches and in lower estuaries, sometimes resting on the water or on jetties, sand spits and similar bare areas. They are often attracted to feeding swarms of loons, pelicans, tubenoses and other seabirds.
The Black-legged kittiwake is a migrant and winter resident in Oregon along the outer coast and offshore. Peak numbers are seen from boats and along the outer coast during migration.