TUBINARES.
Oceanic birds with a superficial resemblance to Gulls ; feet webbed ; nostrils external and tubular ; bill hooked ; rarely go ashore except to breed ; nest in burrows, crevices of cliff's, or under stones or rocks ; single egg, white, sometimes with faint reddish spots in a zone near large end ; young hatched blind and covered with down ; food, small crustaceans, fishes, etc.