Found On The Net: Another Bird Nest
In a small country restaurant in Taiwan, a mama bird selected some open wires near the ceiling to build a nest. A little while later, eggs were found and then hatched. When old enough, baby birds opened their mouth waiting to be fed by mama. The owners of the restaurant bought some worms and helped the feeding; babies were happy but mama bird protested. Guess what? The baby birds understood the wishes of their mama and stopped accepting worms from human.
Having a bird nest with babies attracted lots of customers to this country restaurant. Well, if such were in the US, this restaurant would have violated health code for having a bird nest with free flying birds inside a place intended to serve food.