Filter
Fåglar (ornitologi)
Filter
Reaching from interior Alaska across Canada to Labrador and Newfoundland, North America's boreal forest is the largest wilderness area left on the planet. It is critical habitat …
This beautifully illustrated and user-friendly book presents the most up-to-date information available about the natural histories of birds of the Sierra Nevada, the origins of …
Most owls are almost perfectly adapted to life in the dark. Their vaguely humanoid faces reflect the spectacular evolution of their hearing and vision, which has made flight, …
Raptors--the charismatic group of birds that includes hawks, eagles, and falcons--evoke power, swiftness, and grace. Raptors, or birds of prey, gaze calmly about while at rest, …
In this volume, new human disease pandemics, arising from animals stimulated by ongoing environmental change, demonstrate the value of ornithological research into avian diseases. …
The highly variable North American red crossbill complex has presented one of the most controversial problems in avian systematics. Although crossbills wander nomadically and breed …
Declining bird populations, especially those that breed in North American grasslands, have stimulated extensive research on factors that affect nest failure and reduced …
The northern California coast, from Monterey County to the Oregon border, is home to some of the richest avian habitats on the North America continent. Field Guide to Birds of the …
The Northern Spotted Owl, a threatened species that occurs in coniferous forests in the western United States, has become a well-known environmental symbol. But how is the owl …
Shorebirds are model organisms for illustrating the principles of ecology and excellent subjects for research. Their mating systems are as diverse as any avian group, their …