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Birdology : 30 activities and observations for exploring the world of birds
Encourages young nature enthusiasts to explore the world of birds.
Book
Physiological adaptations for breeding in birds
Physiological Adaptations for Breeding in Birdsis the most current and comprehensive account of research on avian reproduction. It develops two unique themes: the consideration of female avian reproductive physiology and ecology, and an emphasis on individual variation in life-history traits. Tony Williams investigates the physiological, metabolic, energetic, and hormonal mechanisms that underpin individual variation in the key female-specific reproductive traits and the trade-offs between these traits that determine variation in fitness.
The core of the book deals with the avian reproductive cycle, from seasonal gonadal development, through egg laying and incubation, to chick rearing. Reproduction is considered in the context of the annual cycle and through an individual's entire life history. The book focuses on timing of breeding, clutch size, egg size and egg quality, and parental care. It also provides a primer on female reproductive physiology and considers trade-offs and carryover effects between reproduction and other life-history stages. In each chapter, Williams describes individual variation in the trait of interest and the evolutionary context for trait variation. He argues that there is only a rudimentary, and in some cases nonexistent, understanding of the physiological mechanisms that underpin individual variation in the major reproductive life-history traits, and that research efforts should refocus on these key unresolved problems by incorporating detailed physiological studies into existing long-term population studies, generating a new synthesis of physiology, ecology, and evolutionary biology.
eBook
A history of birdwatching in 100 objects
This book looks at 100 items that have profoundly shaped how people watched, studied and engaged with the avian world. Each item contains around 500 words on a double-page spread and include an illustration of the object in question.
Book
Birds of Aruba, Bonaire, and Curacao
Birds of Aruba, Bonaire, and Curaçaois the essential guide for anyone traveling to those islands. It showcases the more than 280 species seen on Aruba, Bonaire, and Curaçao and provides descriptions of and directions to the best places to bird, from the famous white sand beaches to hidden watering holes to the majestic national parks.
Aruba, Bonaire, and Curaçao-the \"ABCs\"-located in the southwestern Caribbean, not far from Venezuela, share fascinating ecological features with the West Indies as well as the South American mainland, making birding on the islands unique. The identification portion of the book features endemic subspecies such as the Brown-throated Parakeet; a wide variety of wintering North American migrants; spectacular restricted-range northern South American species such as the Yellow-shouldered Parrot, Bare-eyed Pigeon, Troupial, Ruby-topaz Hummingbird, and Yellow Oriole; and West Indian species including the Pearly-eyed Thrasher and Caribbean Elaenia.
Colorful introductory sections provide readers with a brief natural history of the islands, detailing the geography, geology, and general ecology of each. In the site guide that follows, Jeffrey V. Wells and Allison Childs Wells share their more than two decades of experience in the region, providing directions to the best birding spots. Clear, easy-to-read maps accompany each site description, along with notes about the species that birders are likely to find.
The identification section is arranged in classic field guide format and offers vivid descriptions of each bird, along with tips on how to identify them by sight and sound. The accounts also include current status and seasonality, if relevant, and common names in English, Dutch, and Papiamento, often inspired by the unique voices of the birds, such as the \"chibichibi\" (Bananaquit) and \"choco\" (Burrowing Owl). The accompanying color plates feature the beautiful work of illustrator Robert Dean.
The final section, on conservation, raises awareness about threats facing the birds and the habitats on which they rely and summarizes conservation initiatives and needs, offering recommendations for each island.
eBook
Shh! We have a plan
\"Four friends creep through the woods, and what do they spot? An exquisite bird high in a tree! 'Hello birdie,' waves one. 'Shh! We have a plan,' hush the others. They stealthily make their advance, nets in the air. Ready one, ready two, ready three, and go! But as one comically foiled plan follows another, it soon becomes clear that their quiet, observant companion, hand outstretched, has a far better idea. Award-winning author-illustrator Chris Haughton is back with another simple, satisfying story whose visual humor plays out in boldly graphic, vibrantly colorful illustrations.\"-- Provided by publisher.
Book
Correction: Game bird carcasses are less persistent than raptor carcasses, but can predict raptor persistence dynamics
[This corrects the article DOI: 10.1371/journal.pone.0279997.].
Journal Article
Correction: Biodiversity hotspot assessment in the Altai Mountains transboundary region based on Mammals and Aves
[This corrects the article DOI: 10.1371/journal.pone.0314075.].
Journal Article
Arctic shorebirds in North America
Each year shorebirds from North and South America migrate thousands of miles to spend the summer in the Arctic. There they feed in shoreline marshes and estuaries along some of the most productive and pristine coasts anywhere. With so much available food they are able to reproduce almost explosively; and as winter approaches, they retreat south along with their offspring, to return to the Arctic the following spring. This remarkable pattern of movement and activity has been the object of intensive study by an international team of ornithologists who have spent a decade counting, surveying, and observing these shorebirds. In this important synthetic work, they address multiple questions about these migratory bird populations. How many birds occupy Arctic ecosystems each summer? How long do visiting shorebirds linger before heading south? How fecund are these birds? Where exactly do they migrate and where exactly do they return? Are their populations growing or shrinking? The results of this study are crucial for better understanding how environmental policies will influence Arctic habitats as well as the far-ranging winter habitats used by migratory shorebirds.
eBook