• Birds are not only for Watching

    7 days ago - By Ornithology

    Bird populations have been declining over the past half century. Perhaps 40 percent of North America's birds have disappeared during that time - over 3.5 billion birds! According to the IUCN Red List , 23 percent of the world's birds are threatened or near-threatened, and 44 percent have declining populations.
    On field trips I used to point out a Yellow-headed Blackbird marsh as a perfect example of territoriality in a polygamous species. The marsh is still there but no blackbirds. I would draw attention to the flight song of the ground-nesting Horned Lark. I can't remember the last time I...
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