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Reading: chủ đề Hummingbirds

Hummingbirds
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Hummingbirds are amazing little birds. They are the smallest of all birds and weigh less than even a penny. The Bee Hummingbird, at barely more than two inches long, is the smallest bird in the world!
 
Unlike most birds, hummingbirds have iridescent feathers. Iridescent feathers glitter and shine in the sun. Hummingbirds are often dazzling combinations of greens and reds or greens and blues. Others are violet, orange, golden, silver or other combinations only Mother Nature could dream up. All hummingbirds have long bills to insert into flowers. Some hummingbirds have special bills to fit in specific flowers. Hummingbirds are the only birds that can fly backwards.
 
Hummingbirds are also unique among bird species in that they drink nectar from flowers. You can attract hummingbirds to your yard with special feeders that are filled with sugar water. These feeders are usually bright red in color because hummingbirds are attracted to red.



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