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Uaʻuʻkani (wedge-tailed shearwater, Puffinus pacificus) spend the winter at sea, traveling as far as the Gulf of Panama, and return to Hawaiʻi in the spring to breed. They nest in burrows that provide protection from predators and intense tropical weather. Adults leave the colony by day to fish and return at dusk to feed their chicks.
Seabird mortality caused by long-line fisheries can be greatly reduced by techniques such as setting long-line bait at night, dying the bait blue, setting the bait underwater, increasing the amount of weight on lines and by using bird scarers, [104] and their deployment is increasingly required by many national fishing fleets.
They nest in burrows and often give eerie contact calls on their night-time visits. They lay a single white egg. They lay a single white egg. The chicks of some species, notably short-tailed and sooty shearwaters, are subject to harvesting from their nest burrows for food, a practice known as muttonbirding , in Australia and New Zealand.
They often forage in pairs but do not feed in large flocks as do other alcids. Loose aggregations of 500 or more birds occasionally occur in winter. Subadults feed singly; but in early July, when pairs of adults are still feeding young, mixed flocks begin to form. [12] Marbled murrelets feed during the day and at night. [15]
Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night. Matutinal, a classification of organisms that are only or primarily active in the pre-dawn hours or early morning.
It also represents the longest night of the year, and the time when the sun is at its lowest daily maximum elevation in the sky. ... the first day of winter. This year, it falls on Saturday 21 ...
That can only mean one thing: The winter solstice is coming. The first day of winter for the northern hemisphere of Earth will begin on Dec. 21 at approximately 4:21 a.m., according to the Farmers ...
An important feature of the winter bird life is the great diversity of wildfowl. A variety of duck, such as common eider and long-tailed duck are found in the shallow water around Lewis. [1] Great Bernera hosts numerous seabird species, including gulls, waders and ducks such as goldeneye. More unusually, a jack snipe was observed on the island ...