Why are there no sea gulls in Hawaii?

Answer 1

"No species of gulls breed in the Hawaiian Islands because the habitat there is not right for them. The only time that gulls are seen in the islands is during migration periods, when as many as six species of gulls have been recorded." - George H. Harrison "After perusing the range maps in Harrison's "Seabirds: An Identification

Guide", it appears that there are two main reasons there are no gulls in

Hawaii. First, Hawaii is a fairly isolated group of islands. Second,

judging from the range maps, gulls generally aren't found very far from

large land masses. It appears that gulls are not predisposed to long

distance movements over water, like terns would be. The islands where gulls

are found generally tend to be fairly close to the mainland or "connected"

by other islands in a chain (such as the Aleutians). There appear to be

records of a few species of gulls making appearences in Hawaii, but these

are probably birds that have been blown that way by storms. " - madsci.org

Answer 2

the temputre of the ocean and the depth