Hummingbirds Orenstein RonaldPaperback / softback
A comprehensive natural history of nature's smallest bird species.The spectacular photography of Michael and Patricia Fogden reveals the diversity, beautiful colors and movement of these unique birds.…
Specifikacia Hummingbirds Orenstein RonaldPaperback / softback
A comprehensive natural history of nature's smallest bird species.The spectacular photography of Michael and Patricia Fogden reveals the diversity, beautiful colors and movement of these unique birds. -- Publishers WeeklyThe tiny hummingbird has long been a source of fascination for birdwatchers and naturalists alike. They number 300 species and Ronald Orenstein has a passion for all of them.Hummingbirds are the smallest birds in the world. A hummingbird egg is the size of a pea, barely, and the chick that emerges will be smaller than a penny, if that. But these tiny birds pack a powerful engine: a hummingbird's heart beats more than 1,200 times per minute.Nicknamed the avian helicopter, a hummingbird's wings beat from 70 times per second in direct flight, to more than 200 times per second when diving. Not surprisingly, that whirlwind
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