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|Pub. Date||Edition||Publisher||Phys Desc.||Language||Availability|
|||Blu-ray + DVD combo pack.||CBS Home Entertainment||1 blu-ray disc (92 min.) : sound, color ; 4 3/4 in. + 1 videodisc (92 min. : sound, color ; 4 3/4 in.)||English|| |
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The wings of ruby-throated hummingbirds are incredible machines, beating nearly 53 times per second and strong enough to fly across the Gulf of Mexico in a single trip! Common in North America, these birds are a delight to observe as they zoom and hover in backyards and gardens. Learn more about ruby-throated hummingbirds in this brightly colored read!