Studies of current interactions among species, their prey, and environmental factors are essential for mitigating immediate threats to population viability, but the true range of behavioral and ecological flexibility can be determined only through research on deeper timescales. Ecological data spanning centuries to millennia provide important contextual information for long-term management stra...

<p>Eagle's syndrome is characterized by elongation of the styloid process or calcification stylohyoid ligament, which irritates and disturbs adjacent anatomical structures. Its symptomatology polymorphic. However, neurovascular manifestations may exceptionally be noted. We report a case incidental discovery during an exploration for spontaneous retro-mandibular hematoma. The patient was 7...

STEENHOF, K. 1987. Assessing raptor reproductive success and productivity. Pages 157-170 in B.A. Giron Pendleton, B.A. Millsap, K.W. Cline, and D.M. Bird [EDs.], Raptor management techniques manual. Washington, DC U.S.A. WARNKE, D.K., D.E. ANDERSEN, C.R. DYKSTR& M.W. ME3⁄4ER, AND W.H. KAR•SOV. 2002. Provisioning rates and time budgets of adult and nestling Bald Eagles at inland Wisconsin nests....

The patient is a 19 year old man from Kerman. His chief complain is dysphagia and a stabbing unilateral sore throat for the past two years. His other symptoms  are painful sensation in the right tonsilar fossa, painful deglutioon and sensation of pain which increases and radiates during speaking, physical excretion and deep breathing . Patient admitted that he has had several periods of hospita...

The recovery of Bald Eagles (Haliaeetus leucophalus), after DDT and other organochlorine insecticides were banned in the United States, can be regarded as one of the most iconic success stories resulting from the Endangered Species Act. Interest remains high in the recovery and growth of the Bald Eagle population. Common to evaluating growth and recovery rates are counts at nesting sites and an...

Eagles currently occur in the Hawaiian Islands only as vagrants, but Quaternary bones of Haliaeetus eagles have been found on three of the major islands. A previous study of a ∼3500-year-old skeleton from Maui found its mtDNA more similar to White-tailed (H. albicilla) than to Bald (H. leucocephalus) Eagles, but low intraspecific resolution of the markers and lack of comparative data from mainl...

Kleptoparasitism in birds has been the subject of much research, and the Bald Eagle (Haliaeetus leucocephalus) is a known kleptoparasite. It has been reported to pirate ducks captured by Peregrine Falcons (Falco peregrinus), but ours is the first study to examine the effect of kleptoparasitic Bald Eagles on the kill rate of shorebird-hunting Peregrines and indirectly on a population of Dunlins ...

BACKGROUND Invasive species are recognized as a primary driver of native species endangerment and their removal is often a key component of a conservation strategy. Removing invasive species is not always a straightforward task, however, especially when they interact with other species in complex ways to negatively influence native species. Because unintended consequences may arise if all invas...