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  • Corvidae - Wikipedia
    The increase in available human food sources is contributing to population rises in some corvid species [20] Some corvids are predators of other birds During the wintering months, corvids typically form foraging flocks [2] However, some crows also eat many agricultural pests, including cutworms, wireworms, grasshoppers, and harmful weeds [19]
  • The biodiversity of species and their rates of extinction . . .
    Where there are the most species, one might expect the most species of all range sizes—large and small alike Surprisingly, species with small ranges are geographically concentrated The highest numbers of bird species live in the lowland Amazon, whereas small-ranged species concentrate in the Andes (fig S1)
  • When Large Birds Disappear, Rainforests Suffer
    The authors of this new study, published in Science, compared the size of more than 9,000 seeds from 22 palm plant populations–a major tree type in the Atlantic forest, several species of which
  • The Best Dad Birds and How They Help out Around the Nest
    Bird Parent Role Reversal Courtesy Nancy Jahnel Pileated woodpecker babies stick their heads out begging for food from dad Some female birds don’t settle for sitting on nests all day Phalaropes (three species of small sandpipers) are a prime example of this parenting flip-flop
  • Birds - Saguaro National Park (U. S. National Park Service)
    Although bird songs can sound melodic and simple, they are very specific calls used to attract a mate or warn other birds Arizona is a bird-watcher’s paradise Saguaro National Park contains many species seen in few other places in the United States, such as vermilion flycatchers and whiskered screech owls
  • H5N2 bird flu: What to know about the first human case - NBC News
    H5N2 belongs to a family of bird flu viruses called H5, which primarily infects wild birds There are a total of nine known subtypes of H5 viruses, according to the Centers for Disease Control and
  • The Mistaken Extinction - University of Texas at Austin
    at the K-T boundary Today, that lineage is represented by over 9,000 species of birds Furthermore, if birds are living descendants of dinosaurs, isn't it incorrect to say that dinosaurs are extinct? What does it mean to say birds are dinosaurs? Proponents argued that newly discovered fossils demonstrated that dinosaurs were the ancestors of





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