they have spines. spines are vertebrates they are not invertebrates.
heatsrottrofo and head
arthropods
protists
Vertebrates and invertebrates.
They are invertebrates because they are an insect and all insects do not have a backbone. YUPPIE that is my answer boo ya
Seabirds are omnivores. Some seabirds are omnivorous, many others are more specialized, feeding particularly on fish, the species and size of which will depend on the size and species of the bird. So, big birds will eat bigger fish. Other birds feed on marine invertebrates, such as shrimps.
The excrement of seabirds used for fertilizer is guano.
Seabirds live at sea, although they do visit coastlines to breed.
Seabirds find their food source -- and warmth -- in the ocean waters where they make their homes.
There are many types of seabirds: Albatross, Auk, Booby, Frigatebird, Fulmar, Gannet, Murre, and Penguin.
The are seabirds that eat clam and fish.
Seabirds in that geography include Skua, Albatross, Tern, Penguin and others.
Adults have few predators, but many seabirds eat the chicks of other seabirds and fulmar chicks are no exception.
They eat mackeral and krill
fish
Sharks, big fish, eagles, and hawks eat all different kinds of seabirds.
Fish: Many seabirds feed on various species of fish. Examples include anchovies, sardines, herring, mackerel, and more. Species like gulls, terns, and puffins often catch fish while foraging at the ocean's surface or through diving. Squid: Squid are a common prey item for some seabirds, including species like albatrosses, petrels, and shearwaters. These birds can be skilled at capturing squid either by surface seizing or diving. Crustaceans: Some seabirds feed on crustaceans such as krill, shrimp, and crabs. Krill, in particular, is a vital food source for many species of penguins, as well as some larger seabirds like albatrosses. Invertebrates: Seabirds may also eat various invertebrates found in the ocean, including jellyfish, small mollusks, and planktonic organisms. Marine Eels: Certain seabird species, like gannets are known to feed on marine eels, which they often capture while diving from the air into the water. Scavenging: Some seabirds, such as gulls and skuas, are opportunistic scavengers and will feed on carrion, fishery discards, and even steal food from other birds. Chicks: During the breeding season, some seabirds may also feed their chicks with regurgitated food. This can include partially digested fish or other prey items.