The main differences between Official Bird's Nest, i.e. White Bird's Nest, White Bird's Nest and Canary Bird's Nest are as follows:
1. Canary Bird's Nest: Bird's Nest absorbs different components of minerals while its color is with a golden yellow.
2. White Bird's Nest: Usually creamy white or off-white, the color of the bird's nest will slowly change from pearly white to off-white after a long time of existence.
2. Calcium content is different
The difference between white and yellow bird's nests is mainly due to the fact that the food of swiftlet in a certain region has higher calcium, so the nests are also high in calcium, oxidized and yellow in color, therefore, yellow bird's nests have higher calcium than white bird's nests.
Expanded Information:
The swiftlet and many other swiftlets of the same genus nest on broken rocky cliffs along the seashore, and the nests consist mainly of saliva secreted by these birds, mixed with other substances such as feathers.
In fact, many scientists have analyzed the composition of bird's nests. The results show that the most important components of dried bird's nests are protein and carbohydrates, which account for 55%-65% and 25%-30% of the total weight, respectively; followed by water, which ranges from 5%-15%, and the rest are some minerals, such as calcium, sodium, phosphorus, iron and potassium.
Baidu Encyclopedia - Golden Bird's Nest
Baidu Encyclopedia - White Bird's Nest