SWIFTLETS vs SWALLOWS
Swiftlet is a migratory bird that flies from Siberia and other places to natural caves along the tropical coast from December to March each year to breed.
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This specific swiftlet is smaller than the swallows we usually see. The feathers on the back are gray-brown with golden luster, the wings are pointed and long, and all four toes grow forward.
Swallows (and martins) are a group of passerine birds, which make up the more familiar-named songbirds.
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Swiftlet has well-developed mucous glands in it’s throat, and the saliva secreted by it can be solidified in the air, which is the main material for them to build nests.
The word “swift” means fast, and swifts can fly at a speed of more than 100 miles (160 kilometers) per hour! Before spawning, they spend much of their lives in the air. Swifts often feed feed close to the ground, to trees or to open water. They seek out places where air-borne insects (such as aerial spiders, dragonflies, flies, ants, aphids, wasps and bees) are abundant; this varies with the weather. and eat insects, seaweed, whitebait and other things.
Nests made by young swifts, due to their inexperience in nesting, their nests are rougher and contain more impurities and feathers. The raw material of bird’s nest harvested at this time is called “毛燕 / Mao Yan”.
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