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Results 1 to 10 of 228 |

Competition and the structure of bird communities / by Cody, Martin L.,1941-(CARDINAL)325735;
Bibliography: pages 289-303.
Subjects: Bird populations.; Birds;
Available copies: 1 / Total copies: 1
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A wing and a prayer : the race to save our vanishing birds / by Gyllenhaal, Anders,author.(CARDINAL)869037; Mills, Beverly,author.(CARDINAL)650206;
Includes bibliographical references (pages 247-298) and index."Three years ago, headlines delivered shocking news: nearly three billion birds in North America have vanished over the past fifty years. No species has been spared, from the most delicate jeweled hummingbirds to scrappy black crows, from a rainbow of warblers to common birds such as owls and sparrows. For the past year, veteran journalists Anders and Beverly Gyllenhaal traveled more than 25,000 miles across the Americas, chronicling costly experiments, contentious politics, and new technologies to save our beloved birds from the brink of extinction. Through this compelling drama, A Wing and a Prayer offers hope and an urgent call to action: Birds are dying at an unprecedented pace. But there are encouraging breakthroughs across the hemisphere and still time to change course, if we act quickly"--
Subjects: Informational works.; Bird populations.; Birds;
Available copies: 19 / Total copies: 19
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Ecological isolation in birds / by Lack, David,1910-1973.(CARDINAL)321188;
Bibliography: pages 357-374.
Subjects: Bird populations.; Isolating mechanisms.;
Available copies: 1 / Total copies: 1
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Bird census techniques / by Bibby, C. J.(Colin J.)(CARDINAL)332931; BirdLife International.(CARDINAL)318724; British Trust for Ornithology.(CARDINAL)332436; Ecoscope Applied Ecologists.(CARDINAL)332930; Royal Society for the Protection of Birds.(CARDINAL)332929;
Includes bibliographical references (pages 279-295) and indexes.Purpose and design in counting birds -- Census errors -- Territory mapping methods -- Line transects -- Point counts and point transects -- Relative measures for bird communities in habitats with high species richness -- Catching and marking -- Counting individual species -- Counting colonial nesting, flocking and migrating birds -- Distribution studies -- Description and measurement of bird habitat."This book provides a concise guide to the various census techniques and to the opportunities and pitfalls which each entails. The common methods are described in detail, and illustrated through an abundance of diagrams showing examples of actual and theoretical census studies. Anyone planning a census of birds in the wild should be able to select the method best suited to the study in hand, and apply it to best effect within the limits inherent in it and the constraints of the particular study."--Jacket.
Subjects: Birds; Bird populations;
Available copies: 1 / Total copies: 1
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Where have all the birds gone? : nature in crisis / by Hirsch, Rebecca E.,author.(CARDINAL)351519;
Includes bibliographical references and index.Three billion to zero -- Disappearing birds -- A clear danger -- Here, kitty, kitty -- Hawk watching -- Food chains and bird brains -- Sea change -- Bringing back nature -- How you can help."In the face of rapidly declining bird populations, read about the vast impacts birds have on ecosystems, food systems, and our mental health and what we can do to protect them"--Birds are nature's essential workers, crucial members of ecosystems around the world. And they are disappearing. Since 1970, nearly 30 percent of all birds in the United States and Canada have vanished, due to city lights and tall glass skyscrapers; domesticated cats prowling outdoors; pesticides, and climate change. In short, due to humans. Hirsch helps readers discover the impact birds have on our world-- and explain how you can help save them.-- adapted from jacketGrades 7-9Ages 13-181030LAccelerated Reader AR
Subjects: Instructional and educational works.; Young adult literature.; Bird populations.; Birds;
Available copies: 16 / Total copies: 16
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The Birds of South Dakota / by South Dakota Ornithologists' Union.(CARDINAL)328939;
Includes bibliographical references (pages 384-406) and index.
Subjects: Birds; Bird populations;
Available copies: 1 / Total copies: 1
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Investigations of woodcock, snipe and rails in 1952 / by Canadian Wildlife Service.(CARDINAL)320895; U.S. Fish and Wildlife Service.(CARDINAL)138186;
Subjects: Scolopax.; Snipes.; Rails (Birds); Bird populations.;
Available copies: 1 / Total copies: 1
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The screech owl, its life history and population ecology in northern Ohio / by VanCamp, Laurel F.; Henny, Charles J.,author.(CARDINAL)321397;
Bibliography: pages 63-65.
Subjects: Screech owls.; Birds; Bird populations.;
Available copies: 1 / Total copies: 1
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The breeding bird survey : its first fifteen years, 1965-1979 / by Robbins, Chandler S.(CARDINAL)157299; Bystrak, Danny.(CARDINAL)328936; Geissler, Paul H.(CARDINAL)320907;
Bibliography: pages 129-132.
Subjects: Bird populations; Bird populations; Bird surveys; Bird surveys;
Available copies: 1 / Total copies: 1
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Population ecology of raptors / by Newton, Ian,1940-;
Bibliography: pages 294-321.
Subjects: Bird populations.; Birds of prey; Birds;
Available copies: 1 / Total copies: 1
unAPI

Results 1 to 10 of 228 |