The difference between blood bird’s nest and bird’s nest is: different sources, different colors, and different raw materials.

1. Different sources

1. Blood swallows: Blood swallows come from the nests of swiftlets built on the rock walls of caves.

2. Bird's nest: Bird's nest refers to the nest built by the saliva secreted by some swifts of the order Swiftidae and several species of swiftlets of the genus Swiftlet, and mixed with other substances.

2. Different colors

1. Blood swallow: Blood swallow shows uneven brownish red, blood color, brown or tan, with darker color at the bottom and lighter color in the middle and edge. .

2. Bird's nest: The color of bird's nest is relatively white. This white color is natural white with a little yellow in it. Yellow Swallow: The entire bird's nest or most parts of the bird's nest are yellowish in color. This is a natural phenomenon.

3. Different raw materials

1. Blood bird's nest: Because the raw material of blood bird's nest comes from the mountains, it is rich in minerals and has higher nutritional value than ordinary bird's nest.

2. Bird's nest: Because the raw materials of bird's nest come from nature's original forest environment and artificial houses, the mineral content is low and the nutritional value is lower than that of blood bird's nest.

Baidu Encyclopedia - Blood Bird's Nest

Baidu Encyclopedia - Bird's Nest