Do Hummingbirds Hum? RR55221188..iinnddbb ii 11//55//1100 11::4499::2277 PPMM Animal Q&A: Fascinating Answers to Questions about Animals Animal Q&A books invite readers to explore the secret lives of animals. Covering everything from their basic biology to their complex behaviors at every stage of life to issues in conserva- tion, these richly illustrated books provide detailed informa- tion in an accessible style that brings to life the science and natural history of a variety of species. Do Butterfl ies Bite? Fascinating Answers to Questions about Butterfl ies and Moths by Hazel Davies and Carol A. Butler Do Bats Drink Blood? Fascinating Answers to Questions about Bats, by Barbara A. Schmidt-French and Carol A. Butler Why Do Bees Buzz? Fascinating Answers to Questions about Bees, by Elizabeth Capaldi Evans and Carol A. Butler RR55221188..iinnddbb iiii 11//55//1100 11::4499::2277 PPMM Do Hummingbirds Hum? Fascinating Answers to Questions about Hummingbirds George C. West and Carol A. Butler Rutgers University Press NEW BRUNSWICK, NEW JERSEY, AND LONDON RR55221188..iinnddbb iiiiii 11//55//1100 11::4499::2277 PPMM Library of Congress Cataloging-in-Publication Data West, George C. Do hummingbirds hum? : fascinating answers to questions about hum- mingbirds / George C. West and Carol A. Butler. p. cm. — (Animal Q & A) Includes bibliographical references and index. ISBN 978-0-8135-4738-1 (pbk. : alk. paper) 1. Hummingbirds—Miscellanea. I. Butler, Carol A., 1943– II. Title. QL696.A558W47 2010 ′ 598.764—dc22 2009049511 A British Cataloging-in-Publication record for this book is available from the British Library. Black-and-white illustrations and photographs are by George C. West, un- less otherwise noted. Copyright © 2010 by George C. West and Carol A. Butler All rights reserved No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, or by any information storage and retrieval system, without written permission from the publisher. Please contact Rutgers University Press, 100 Joyce Kilmer Avenue, Piscataway, NJ 08854–8099. The only exception to this prohibition is “fair use” as defi ned by U.S. copyright law. Visit our Web site: http://rutgerspress.rutgers.edu Manufactured in the United States of America RR55221188..iinnddbb iivv 11//55//1100 11::4499::2277 PPMM Contents Preface xi Acknowledgments xv ONE Hummingbird Basics 1 1 What is a hummingbird? 1 2 How do hummingbirds differ from other birds? 2 3 Where in the world are hummingbirds found? 3 4 When did hummingbirds evolve? 7 5 How are hummingbirds classifi ed? 12 6 What are the differences between typical or trochilid hummingbirds and hermits? 13 7 How many species of hummingbirds are there in the world? 14 8 How long do hummingbirds live? 15 9 Which are the smallest and largest hummingbirds? 16 TWO Systems and Senses 19 1 Are hummingbirds intelligent? 19 2 What do hummingbirds eat? 21 3 Why do hummingbirds need to eat so much? 26 4 How do hummingbirds know which fl owers have nectar? 27 5 How do hummingbirds digest their food? 28 6 How do hummingbirds get rid of the water from all that nectar they drink? 30 RR55221188..iinnddbb vv 11//55//1100 11::4499::2288 PPMM vi CONTENTS 7 Why do hummingbirds have such long bills? 31 8 How can hummingbirds be so active? 33 9 Are hummingbirds warm blooded or cold blooded? 36 10 How fast does a hummingbird’s heart beat? 37 11 How do hummingbirds conserve energy? 37 12 Can hummingbirds walk? 39 13 Do hummingbirds have a good sense of smell? 39 14 Do hummingbirds hear well? 41 15 Do hummingbirds have good eyesight? 43 16 Do hummingbirds hum? 45 17 Do hummingbirds sing? 47 THREE Feathers and Bones 50 1 How fast does a hummingbird beat its wings? 50 2 How does a hummingbird hover? 52 3 How is the hummingbird’s skeleton adapted to the bird’s life style? 55 4 How many feathers does a hummingbird have? 57 5 How do birds keep their feathers so smooth and the wing feathers in perfect shape? 60 6 When do hummingbirds molt? 62 7 Are all hummingbirds brilliantly colored? 64 8 What are iridescent feathers? 66 9 If I fi nd a hummingbird feather, what can it tell me? 67 FOUR Reproduction 69 1 How does a hummingbird attract a mate? 69 2 How do hummingbirds protect their mating territory? 71 3 Are hummingbirds monogamous? 73 4 How do hummingbirds reproduce? 74 5 Can hummingbirds of one species mate with those of another species? 74 6 How big is a hummingbird’s egg? 75 7 How many young do hummingbirds have each year? 77 8 How long does it take for hummingbird eggs to hatch? 81 RR55221188..iinnddbb vvii 11//55//1100 11::4499::2288 PPMM CONTENTS vii 9 Do both hummingbird parents take care of the nest? 81 10 Why are hummingbird nests so hard to fi nd? 82 11 How does a hummingbird female feed herself while incubating eggs? 82 12 How does a hummingbird female feed her nestlings and what do they eat? 83 13 How quickly do hummingbirds mature? 84 14 Will young hummingbirds return to a nest after they’ve left it? 86 FIVE Flight and Migration 87 1 How far can a hummingbird fl y? 87 2 How are hummingbirds able to fl y so far? 90 3 What tells a hummingbird when to migrate? 92 4 How do hummingbirds fi nd their way during migration? 93 5 Do all hummingbirds migrate? 94 SIX Dangers and Defenses 97 1 What are the natural predators of hummingbirds? 97 2 How do hummingbirds defend themselves and their food supply? 98 3 Do hummingbirds get sick? 99 4 Do hummingbirds get parasites? 102 5 How are fl ower mites dependent on hummingbirds? 103 6 What dangers do hummingbirds face in the environment? 103 7 What dangers do hummingbirds face from people? 105 8 How can I get a hummingbird safely out of my house if it has accidentally entered? 106 SEVEN Attracting and Feeding 108 1 Are hummingbirds friendly? 108 2 How can I attract hummingbirds to my garden or feeder? 109 3 Will hummingbirds feed only from red fl owers? 110 RR55221188..iinnddbb vviiii 11//55//1100 11::4499::2288 PPMM viii CONTENTS 4 What type of hummingbird feeder is best? 110 5 How do I make nectar to put in my hummingbird feeder? 113 6 Where is the best place to hang my hummingbird feeder? 114 7 How does a hummingbird fi nd my feeder? 115 8 How can I discourage insects and animals from visiting my feeder? 115 9 Will my feeder interfere with hummingbirds’ natural impulse to migrate? 119 10 Will a hummingbird return to my feeder the following year? 119 EIGHT Identifying and Photographing 121 1 What is the best way to identify hummingbirds? 121 2 What features distinguish one hummingbird species from another? 124 3 How can I tell a male from a female hummingbird? 125 4 Where are the best places to see hummingbirds in the wild? 127 5 Why don’t people keep caged hummingbirds as pets? 127 6 Why are there so few hummingbird exhibits in zoos and museums? 129 7 How can I photograph hummingbirds when they move so fast? 133 NINE Research and Conservation 136 1 Are hummingbirds endangered? 136 2 Are hummingbirds valuable to the economy? 137 3 How do researchers capture hummingbirds for study? 138 4 What is bird banding? 141 5 Why do researchers band hummingbirds? 142 6 How can I become qualifi ed to band hummingbirds? 145 7 What should I do if I see or rescue an injured hummingbird? 146 RR55221188..iinnddbb vviiiiii 11//55//1100 11::4499::2288 PPMM CONTENTS ix 8 What can I do to help support the conservation and protection of hummingbird populations? 147 Appendices A Garden Plants That Attract Hummingbirds 149 B Some Places to See Live Hummingbirds in Exhibits or Gardens 153 C Hummingbird Organizations 159 D Recommended Reading and Web Sites 161 References 163 Index 179 A color insert follows page 94 RR55221188..iinnddbb iixx 11//55//1100 11::4499::2288 PPMM
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