Some Observations on Breeding Broad-Winged Hawks
نویسندگان
چکیده
منابع مشابه
Soaring and Gliding Flight of Migrating Broad-winged Hawks: Behavior in the Nearctic and Neotropics Compared
—We compared migrating behavior of Broad-winged Hawks (Buteo platypterus) at two sites along their migration corridor: Hawk Mountain Sanctuary in eastern Pennsylvania and the Kéköldi Indigenous Reserve in Limón, Costa Rica. We counted the number of times focal birds intermittently flapped their wings and recorded the general flight type (straight-line soaring and gliding on flexed wings versus ...
متن کاملNotes on Breeding Sharp-shinned Hawks and Cooper’s Hawks in Barnwell County, South Carolina
Breeding records of Accipiter striatus (Sharp-shinned Hawks) in the southeastern US are scattered and isolated. We documented a Sharp-shinned Hawk and Accipiter cooperii (Cooper’s Hawk) nest while conducting a telemetry study on Melanerpes erythrocephalus (Red-headed Woodpeckers) in Barnwell County, SC in 2006 and 2007. We report the fi rst known nest of a Sharp-shinned Hawk in Barnwell County,...
متن کاملPrice Risk Management for Australian Broad acre Farmers: some observations
This article briefly explores the nature of price risk faced by Australian broad acre farmers and outlines some farm management ramifications of price risk. The article describes the variation in price risk across time and across commodities. The underlying distributional form of prices faced by farmers is shown to have important ramifications for farm management. The likelihood of increases in...
متن کاملHabitat Effects on the Breeding Performance of Three Forest-Dwelling Hawks
Habitat loss causes population declines, but the mechanisms are rarely known. In the European Boreal Zone, loss of old forest due to intensive forestry is suspected to cause declines in forest-dwelling raptors by reducing their breeding performance. We studied the boreal breeding habitat and habitat-associated breeding performance of the northern goshawk (Accipiter gentilis), common buzzard (Bu...
متن کاملSome Observations on Dirac Measure-Preserving Transformations and their Results
Dirac measure is an important measure in many related branches to mathematics. The current paper characterizes measure-preserving transformations between two Dirac measure spaces or a Dirac measure space and a probability measure space. Also, it studies isomorphic Dirac measure spaces, equivalence Dirac measure algebras, and conjugate of Dirac measure spaces. The equivalence classes of a Dirac ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Blue Jay
سال: 1986
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay4918