additional the type Puffinus still belongs the frequent one, 54 -55 cm big white-chin-petrel (Procellaria aequinoctialis) from the southern seas as biggest representative of the storm-divers and one close to relative, rare type, the black-petrel (Procellaria parkinsoni) as well as the 45 - 49 cm long gray-petrel (Adam-Astor cinereus), to this subfamily of the petrels.
Type Puffinus Here, the 14 types of the actual storm-divers are condensed. they live as well as on the northern one(s) like on the southern Erdhalbkugel (here, most types are widespread) and undertakes wide hikes, that they lead also over the equator.
So, big soot broods the 40-50 cm - or dark storm-divers (P). griseus, on New Zealand's South-island as well as on islands of the bass-street (between Australia and Tasmania) and in South America's (including Falklandinseln) mountain-situations. From the brood-colonies in the Australian area (bass-street), where also some millions of short-tail or million-storm-divers (P). tenuirostris, broods, the grown up storm-divers (both types) move as far as into the sub-arctic waters of the Bering-sea northwards, turn away eastward and hike in a circular bow-train from North America's coast southwards in order to then come back again over the wideness of the Pacific to the Nistplätzen. Also in the Atlantic area, darkness-storm-divers move as far as to Greenland's coasts northwards during the South-winter.
The 45-53 cm long big or cap-storm-divers (P). gravis, that broods Cunha and the Gough-Insel in large colonies of approximately 2-2,5 million birds only on Tristan there even advances on its wintry hikes in the northern late summer in large flocks as far as to the northern polar circle (Baffin-Bay) until autumn.
From north to south against it, big black-beak-storm-diver (P) moves the 35-37 cm regularly. puffinus. it is spread in several races (from quite different coloring) as brood-bird over the islands and coasts of the Mediterranean, Atlantic (Iceland, Färöer, British islands, Brittany, Azores, Madeira and Bermudas) and Pacific (low-California, New Zealand). In the winter, the northern populations move as far as to Argentina southwards.
Scientific examinations at the European brood-birds uncovered astonishing facts: so, the death-installment amounts only 5 percent within a brood-population of black-beak-storm-divers; this probably is applicable to most of the long-lived tube-noses. These seabirds have an unusually low and very much lower cancellation-quota as Z consequently. B. Seagulls and its relatives, which Z. T. may also explain, why little offspring and the long development-time are enough, about which to seize survived of the tube-noses.
Where however, the human being intervenes and slaughters the still unairworthy, fat "sheep-birds" after (petrels) the migrating the alto-birds in masses, disastrous consequences for it can pull survived according to a type itself. In younger time, the hunt was restricted something to the boys of the 33-35 cm long million-storm-divers. The squabs of this type are 80 percent heavier than its parents at the end of the feeding-menstruation about approximately. Million-storm-divers brood for 52-55 days.
Yellow-beak-storm-divers (Puffinus diomedea) big with the 45-55 cm, that on islands of the means-sea and on some Atlantic islands (Z). B. Azores (Kapverden) breeds, the parents leave its young in the age of 60 days alone. After further 10-15 days, the squab then is kicked out on the sea at night. Storm-divers pull up its first brood only in the age of 5-6 years. Often, the birds then come back exactly to the same colonies, in which they hatched. If million-storm-divers arrive again at the hatcheries against end September after its hikes, they take care shortly of the condition of its Nisthöhlen and first are kicked out again on the sea after it. Approximately approximately 20. November around then come back all birds to the colony and begin with the brood in the subsequent 2 weeks.
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