Analysis of information sources in references of the Wikipedia article "நெட்டைக் கொக்கு" in Tamil language version.
... The smallest member of the crane family, the demoiselle crane (Anthropoides virgo ) is a distinctive looking bird, with ashy grey ... The local name for this crane — koonj — is onomatopoeic, deriving from the Sanskrit 'kraunch', the origin of the word crane itself ...
... kunj: more properly koonj is a demoiselle crane. The word is used metaphorically for a young bride far from her home ...
... The second day: Two kraunchas ... Yudhishtira decides to form his legions in the vyuha called the krauncha, after the crane ...