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Other human factors have led to declines and even extinctions in seabird populations and species. Of these, perhaps the most serious are introduced species. Seabirds, breeding predominantly on small isolated islands, are vulnerable to predators because they have lost many behaviours associated with defence from predators. [60]
The magenta petrel (Pterodroma magentae), or Chatham Island tāiko, is a small seabird in the gadfly petrel genus, Pterodroma.Found exclusively on Chatham Island, New Zealand, it is one of the rarest birds in the world, believed to be extinct for over 100 years before its rediscovery in the 1970s.
The crested auklet (Aethia cristatella) is a small seabird of the family Alcidae, distributed throughout the northern Pacific and the Bering Sea. The species feeds by diving in deep waters, eating krill and a variety of small marine animals. It nests in dense colonies of up to 1 million individuals in the Bering Sea and the Sea of Okhotsk.
The white-tailed tropicbird (Phaethon lepturus) or yellow-billed tropicbird is a tropicbird.It is the smallest of three closely related seabirds of the tropical oceans and smallest member of the order Phaethontiformes.
The white tern or common white tern (Gygis alba) is a small seabird found across the tropical oceans of the world. [2] It is sometimes known as the fairy tern, although this name is potentially confusing as it is also the common name of Sternula nereis.
The marbled murrelet (Brachyramphus marmoratus) is a small seabird from the North Pacific. It is a member of the family Alcidae, which includes auklets, guillemots, murres and puffins. It nests in old-growth forests or on the ground at higher latitudes where trees cannot grow. Its population has declined since humans began logging its nest ...
An Alaska seabird species faced the worst mortality event in modern history, and the population isn’t recovering, a study finds. Experts discuss the future implications.
The skuas / ˈ s k juː ə / are a group of predatory seabirds with seven species forming the genus Stercorarius, the only genus in the family Stercorariidae.The three smaller skuas, the Arctic skua, the long-tailed skua, and the pomarine skua, are called jaegers in North American English.