Feeding ecology and diet Albatrosses - animals.worldmy.info

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Feeding ecology and diet Albatrosses

Birds > Group of birds > Albatrosses
Feeding ecology and diet Albatrosses

Various species of squid seem to provide the main component of the albatross diet. Many of these species are bioluminescent, and can be caught during the night. Some
localised feeding spots provide a regular annual supply of carrion (e.g. during the annual die-off of Sepia
cuttlefish on the eastern Australian coast) along established migration routes for some species. The diet also inlcudes a wide range of fish including small flying-fish, lampreys (Geotrea), pilchards (Sardinops) and crustaceans such as krills (Euphausia sp.), amphipods, copepods and crabs.

Other recorded prey items include salps, seaweeds, barnacles, and fish spawn. Other small seabirds (prions, diving-petrels, and penguins) have been found in stomach contents as have examples of carrion from dead whales and seals. Some species can feed during the breeding season within a few hundred miles (kilometers) of the breeding place, as is the case with the northern royal albatross and the shy and Chatham mollymawks. Most food is gathered at the surface, but some of the smaller mollymawks may plunge and swim a short distance (up to 16 ft [5 m]) below the surface after prey. Kleptoparisitism has been recorded among waved albatrosses chasing boobies (Sula spp.), black-browed albatrosses from  Phalacrocorax, and among eastern yellow-nosed albatrosses chasing shearwaters. Food is also obtained by some species from human fisheries offal, discards, and stolen baits.

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