It's really amazing to see how creative this birds are......they can build home almost everywhere from zero. In Bangladesh we called this bird as BABUI. This bird is very much famous for its architectural excellence. It takes maximum 2 days to build a house and the houses look very nice and creative. And the houses are so strong that it can face medium level of storms very easily. They lives with family in the same house and off course they are very social. I must say they are really very successful architect and should get reward. LOL