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The gadfly petrels or Pterodroma are a genus of about 35 species of petrels, part of the seabird order Procellariiformes. The gadfly petrels are named for their speedy weaving flight, as if evading gadflies . The flight action is also reflected in the name Pterodroma, from Ancient Greek pteron, "wing" and dromos, "runner".
The Galápagos petrel is one of the 35 species of gadfly petrels within the family Procellariidae and order Procellariiformes. [6] This is one of the most primitive bird orders, and all of its members are collectively referred to as "petrels". [6] Taxonomically, its genus and family are extremely complex and are often subject to revision. [6]
The Fiji petrel (Pseudobulweria macgillivrayi), also known as MacGillivray's petrel, is a small, dark gadfly petrel. The Fiji petrel was originally known from one immature specimen found in 1855 on Gau Island, Fiji by naturalist John MacGillivray on board HMS Herald who took the carcass to the British Museum in London. It was rediscovered in ...
The gadfly petrels: These are a considerable number of agile short-billed petrels in the genus Pterodroma which include the endangered Bermuda petrel (or cahow) and a considerable number of forms rendered extinct by human activity. The diving petrels: These are the four species of auk-like small petrels of the southern oceans in the genus ...
Cook's petrel (Pterodroma cookii), or the tītī or blue-footed petrel, [2] is a Procellariform seabird. It is a member of the gadfly petrels and part of the subgenus Cookilaria Bonaparte, 1856, which includes the very similar Stejneger's petrel .
The gadfly petrels and the Kerguelen petrel mainly feed at night. In so doing they can take advantage of the nocturnal migration of cephalopods and other food species towards the surface. [20] [45] The fulmarine petrels are generalists, which for the most part take many species of fish and crustacea.
This is a list of the birds that belong to the group gadfly petrels. They are all from the genus Pterodroma and belong to the family Procellariidae. Pterodroma macroptera, great-winged petrel, breeds and ranges on islands of the southern oceans [1]
The Chatham Islands petrel is a medium-sized petrel with a mottled dark-grey and white forehead, dark grey back and upper wings, and white underparts. A black diagonal bar extends from the leading edge of underwing to a black 'armpit'. The shoulders and upper-wing coverts are a deeper grey giving a dark M pattern across the spread upper wings.