Among all nests build by birds , the hanging nests are the most complex nest bulding , an admirable of bird architecture. In indian the hanging nests found are that of Baya weaver and sunbirds. It require great skill by a bird to build such type of nest.The main purpose of such types of nests are protection from predators and adverse climate. These nests generally hung from the tip of a branch or leaf, or suspended between twigs. They are globular or retort-shaped with a single entrance hole. A completed baya nest looks like an upside down flask with a downward tube like pointing entrance .The swollen portion of the nest is the main nesting area or egg chamber.The sunbird nest is build with cobwebs and caterpillar excreta hanging from a tip of a branch or twig.
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