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While a Global Positioning System (GPS) is the most widely used sensor modality for aircraft navigation, researchers have been… Expand In 2000, 2001, and 2002, blood and feather samples were collected from 40–45-day-old nestling ospreys (Pandion haliaetus) from… Expand Migrating birds often alternate between flight steps, when distance is covered and energy consumed, and stopover periods, when… Expand Despite serious water-quality problems and pollutant loading and retention, Delaware River and Bay (USA) provide important… Expand Abstract:The Chesapeake Bay osprey population has more than doubled in size since restrictions were placed on the production and… Expand The osprey is a large raptor with a wingspan of 4.5 ft. to 6 ft. When gliding, the osprey’s long, narrow wings are pulled towards… Expand Abstract. Mercury exposure was examined in adults and nestlings of ospreys (Pandion haliaetus) from lakes, rivers, and… Expand Abstract. Osprey (Pandion haliaetus) eggs and chick feathers were collected for mercury analysis from nests at four Great Lakes… Expand Tree swallows engage in extra-pair copulations, creating an opportunity for sperm competition. The aim of this study was to… Expand We have recorded with the magnetic search coil method the spontaneous saccades of two species of predatory birds, which differ in… Expand