Friday, October 16, 2009
Nicholas Teo admitted to hospital due to liver viral infection
Tuesday, October 13, 2009
STAR Librarian Annual Lunch - A Night To Remember
Saturday, October 3, 2009
Birds of Paradise
Birds of paradise are generally crow-like in general body-form, and, indeed are the brother group to the Corvids (crows and jays). They have stout or long bills and strong feet, with around two-thirds of the species being strongly sexually dimorphic.
They live in tropical forests, including rainforest, swamps and moss forest. In most species, the diet consists predominantly of fruit, although riflebirds and sicklebills also favour insects and other arthropods.
Most species have elaborate mating rituals, with the Paradisaea species using a lek-type mating system. Others, such as the Cicinnurus and Parotia species, have highly ritualised mating dances. Males are polygamous in the sexually dimorphic species, but monogamous in at least some of the monomorphic species. Hybridisation is frequent in these birds, suggesting the polygamous species of bird of paradise are very closely related despite being in different genera. Many hybrids have been described as new species, and doubt remains regarding whether some forms, such as Rothschild's Lobe-billed Bird of Paradise, are valid. Despite the presence of hybrids, some ornithologists hypothesise that at least some putative hybrids are valid species that may be extinct.
Birds of paradise build their nests from soft materials, such as leaves, ferns, and vine tendrils, typically placed in a tree fork. Clutch size is somewhat uncertain. In the large species, it is probably almost always just one egg. Smaller species may produce clutches of 2-3.Eggs hatch after 16–22 days, and the young leave the nest at between 16 and 30 days of age.