Unusual raptor nests around the world

From surveys in many countries, we report using unusual nesting materials (e.g., paper money, rags, metal, antlers, and large bones) and unusual nesting situations. For example, we documented nests of Steppe Eagles [Aquila nipalensis] and Upland Buzzards [Buteo hemilasius] on the ground beside well-traveled roads, Saker Falcon [Falco cherrug] eyries in attics and a cistern, and Osprey [Pandian haliaetus] nests on the masts of boats and on a suspended automobile. Other records include a Golden Eagle [A. chrysaelos] nest 7.0 m in height, believed to be the tallest nest ever described, and, for the same species, we report nesting in rudimentary, nests. Some nest sites are within a Few meters of known predators or competitors. These unusual observations may be important in revealing the plasticity of a species' behavioral repertoire

Factors affecting diet, habitat selection and breeding success of the African Crowned Eagle Stephanoaetus coronatus in a fragmented landscape

This study aimed to identify variables that affect habitat selection and nesting success of the African Crowned Eagle Stephanoaetus coronatus, the largest forest raptor, in north-eastern South Africa. A preference for nesting in the Northern Mistbelt Forest vegetation type was established and 82% of all nests were located in indigenous trees. Nest abandonment was less common when distances to the nearest neighbour were greater. The diet of this species was investigated by examination of prey remains beneath nests and verified by comparison with museum specimens. In total, 156 remains were found, representing a minimum of 75 prey individuals. The diet of African Crowned Eagles constituted almost entirely mammals (99%), which were predominantly antelopes (61%) and monkeys (25%). It was also found that the proportion of primates in the diet correlates with latitude: populations in equatorial latitudes have a higher proportion of primates in their diets, whereas further south antelopes are a much more common diet component

A survey of nesting Ospreys in Michigan II.

http://deepblue.lib.umich.edu/bitstream/2027.42/52366/1/797.pdfDescription of 797.pdf : Access restricted to on-site users at the U-M Biological Station

The status of the Bald Eagle at Lake Nipigon and the Thunder Bay and Black Bay area of Lake Superior, Ontario.

http://deepblue.lib.umich.edu/bitstream/2027.42/52464/1/896.pdfDescription of 896.pdf : Access restricted to on-site users at the U-M Biological Station

Plot census of a breeding bird population.

http://deepblue.lib.umich.edu/bitstream/2027.42/52319/1/750.pdfDescription of 750.pdf : Access restricted to on-site users at the U-M Biological Station

The status of the Osprey in the north-central United States, 1967.

http://deepblue.lib.umich.edu/bitstream/2027.42/52412/1/844.pdfDescription of 844.pdf : Access restricted to on-site users at the U-M Biological Station

Reproductive success and population trends in the Bald Eagle in Michigan.

http://deepblue.lib.umich.edu/bitstream/2027.42/52413/1/845.pdfDescription of 845.pdf : Access restricted to on-site users at the U-M Biological Station

Bald Eagle nesting studies in Michigan, 1968.

http://deepblue.lib.umich.edu/bitstream/2027.42/52465/1/897.pdfDescription of 897.pdf : Access restricted to on-site users at the U-M Biological Station