A、They have no scientific name. B、Their skins were used in trading. C、They were related to the crow. D、They kept flying until th

Birds of paradise have brighter colours than any other birds in the world. With their gray colours, it would be difficult to guess that they are cousins of the common crow. However, only the male birds of paradise have bright-coloured feathers: the feathers of the female are very dull. More than 30 different kinds of birds of paradise inhabit mostly in the hot, rainy forests in New Guinea, although a few species are found in Australia.
    As long as 500 years ago, the skins of these birds were used in the East Indies. Before their skins were used, their feet were always cut off, leading to the misconception that the birds never had feet. There was a popular story told that these beautiful creatures were not able to stop flying until they died. The scientist Linnaeus even gave them a name which means "without feet".
Q:
18. What kind of feathers does the female bird of paradise have?
19. What was a common misconception about the birds?
20. What does the scientific name of the birds of paradise mean?