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  • Wing morphology, flight type and migration distance predict . . .
    It was shown that wing aspect ratio increases and wing loading decreases with increasing migration distance in birds (Vágási et al , 2016), indicating that long-distance migration co-evolves with wing traits to ensure energy-efficient flight Although wing design and flight type determine the power required for flight, how these factors
  • Stopover Habitats and What Birds Need on Migration
    Like links in a chain, these stopover sites sustain birds' remarkable long-distance migrations They are typically resource-rich — some birds literally double their body weight at these sites, building fat stores that will sustain them as they fly thousands of miles across continents and oceans
  • Are movements of daytime and nighttime passerine migrants as . . .
    The maximum distance a bird needs to cross the water body in our study area is with some 150 km relatively short (Figure 2), and direct crossing of the open water would take birds of our study species about three and a half hours in neutral winds (see Bruderer Boldt, 2001 for species specific airspeeds)
  • Study finds nearly 10k bird species in the world — but some . . .
    A notable number of these bird species, however, are rare; approximately 1,180 species, or 12 percent of all species have populations of less than 5,000 individual birds
  • Black Kites on a flyway between Western Siberia and the . . .
    Birds In total, 19 Black Kites (11 females, 8 males) from breeding populations in Western Siberia, Russia, were investigated in this study Kites originated from two spatially separated breeding
  • Mountain Birds and Their Habitats (Chapter 1) - Ecology and . . .
    Found Redirecting to core books abs ecology-and-conservation-of-mountain-birds mountain-birds-and-their-habitats A6A63F901C270540A8A782975E4624BF
  • Exploring The Evolution of Birds: From Dinosaurs to Today
    The timeline of bird evolution can be traced through the fossil record, which shows a progression from early bird-like dinosaurs to the emergence of distinct bird species Notable examples of early birds include Archaeopteryx, which had feathers and wings but also retained some dinosaur-like features such as sharp teeth





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