'They create such nest, hanging nest'

Prabhupada: They create such nest, hanging nest. It is very nice fiber, fabricated. They know the art, simply by beaks. They have no hands. They work only with the beaks, and you see the workmanship.
Even the birds, they have family, two birds, always together, the husband and wife. They have got a nest, and some eggs also. And they are also trying to, I mean to say, manufacture some nest. As soon as the lady bird is pregnant, they, immediately their attempt will be to find out some straw and make a nest. You have seen it perhaps, studied it. You see? So long the lady bird is not pregnant, there is no question of nest. This is natural. You’ll find everywhere. Even the ants and the birds, beasts, everywhere. So this kutumba-bharanam is a duty of living entity. It doesn’t matter whether he’s a human being or a dog or a bird or a cat. That is natural. That is not very great credit. But the present yuga, Kali-yuga, if one can maintain his family and maintain an apartment, he’s to be understood as a very great, successful man. He does not see that this success is there even in the ants and the birds and the beasts.

Srimad-Bhagavatam 2.1.3 Lecture
by His Divine Grace A. C. Bhaktivedanta Swami Prabhupada
Paris, June 12, 1974