the 9 types of the Triele or "Dick-feet" forms an independent family of the Regenpfeiferartigen. they are almost world-wide widespread in warmer dry-areas and are missing only on New Zealand and some islands of these Pacific regions as well as in North America.
Characteristics Also in Central Europe, heavy Triel (Burhinus oedicnemus) lives the 41 cm long one and approximately 450-475 g, however, it vanished with us. Characteristic characteristics this Regenpfeiferartigen are the thick Intertarsalgelenke ("heel-joints") in the long, yellow legs, its big head with the big, yellow eyes (twilight - and night-active birds) and the quite short one, but strengthens yellow and black colored beak. The plumage is erdfarben brown. With the European Triel, a white wing-bandage rises 2 light strips for itself also with closed wings from, while in the flight on the wings visible becomes. Both sexes resemble from. Triele don't have any rear-toe; the 3 front-toes are together interconnected through small instep-skins.
Spread The brood-area of the Triels stretches from the Canary islands and North-Africa as far as to south and Central Europe and after Turkestan, Asia Minor and the Arabic peninsula as well as. until southwest-Iran, to India, Sri Lanka and southeast-Asia.
Brood Triele prefer dry, only sparsely overgrown wasteland-ships, steppes and semi-deserts, where not it at quiet, constantly from people of disturbed localities its flat Nistmulden (diameters): 16-22 cm, aims. The nest is either not padded at all or is not laid out only with small little stone or plant-rests inadequately.
The nest consists of 2 eggs (5,4 x 3,8 cm) and is incubated by both alto-birds for 24-26 days. The brood-reliefs often proceed strongly ritualized; the replaced bird hurls little stone away when going away with the beak sideways.
The boys have a dense, short one and brownish-gray colored Dunenkleid and can already at the 2. Around-run (Nestflüchter) life-day. With danger, young Triele shirk flat and completely motionless on the ground until the alto-birds with a certain reputation give the all clear. Initially, its boys defend leading alto-birds quite severely and "tempt" even occasionally; as soon as however, the boys can run sufficiently well, Triele remain (already after few days) in proper distance with danger in order not to betray the excellently camouflaged chicks.
In the first days, the parents show its offspring of suitable food and bring smaller insects and other arthropods as well as small mollusks and other invertebrates. Later, Triele pick up occasionally also amphibians and their larvae, reptiles and even rarely small-mammals. Also plant-instincts and Sämereien belong seasonal to the food-offer of the "Dick-feet." After 36-40 days, the squabs undertake its first flight-attempts; right, they are flown in the age of 6 weeks. Triele are fully adult after 2 months, they probably still become sexually mature in the 1. Year of life.
Further types Many zoologist puts the Riesentriel or Rifftriel (Burhinus giganteus [Esacus magnirostris]) and the 51 cm long Krabbentriel (B). recurvirostris, into the own type Esacus. Rifftriele are to be distinguished from Krabbentrielen at its very strong, straight beak and the more varied black-and-white-drawing at the head. These have a daintier and upward bent beak. its spread-area lies in India, Sri Lanka and Burma, while Rifftriele widespread on the Andamanen, at the coasts Malayas and the Philippines as well as lives on many further islands (Salomonen and New Caledonia) and in north and East-Australia.
Also, the 55 cm long Langschwanztriel (B) lives in Australia and in New Guinea's south. magnirostris.
In its habits, all Trielarten don't differ strongly of each other; however, the nest of the Rifftriele consists only of one single egg (6,3 x 4,5 cm) normally. Mainly, this Triel lives from cancer-animals and mussels.
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