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Author: Chandima Fernando

Toothed-Billed Bower Bird- The lazy Architect

Male birds use different strategies to attract females- such as visual signals, courtship dance, melodic harmonies etc. Some birds use their creativity to attract their mate. In Australia and PapuwaNewguini there is such a bird group. They are named after the structures they build ??? Bower. Bower birds have a very unique courtship ritual among the birds. They are architects and artists and these craftsmen build their bowers in a romantic way to win their lovers heart. Each species is different with what they build, among them there are ???platform???, ???maypole??? and ???avenue??? builders.

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Fruit eating butterflies – Some observations on frugivorous behaviour of some Nymphalidae

Since fruits are available year around in the tropics not like in temperate climate some butterflies have evolved to feed on rotting fruits.So why these butterflies prefer fruit juice over nectar? It has been experimentally shown that Sodium and other microbial products such as Amino Acids are deficient in nectar ,where as fruits are richer in Sodium and Nitrogen . So the next question is , are these butterflies interested in both Sodium and Nitrogen equally or more interested in one over the other.

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