Photographs by Amanda Boyd, USFWS (piping plover), Ryan Hagerty, USFWS (whooping crane) (CC BY 2.0), Alyson McNight, USFWS (juvenile Kittlitz’s murrelet) (CC BY 2.0), Duncan Wright (ashy storm petrel) (CC BY-SA 3.0), Mary Kramer, USFWS (Gunnison sage grouse) (CC BY 2.0), Joel Trick, USFWS (Kirtland's warbler) (CC BY 2.0), leppyone's (Florida scrub jay) (CC BY 2.0), Stuart Thornton (California condor) (National Geographic), Joel Sartore (golden cheeked warbler) (National Geographic)

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    On January 5, 2008, the United States first celebrated National Bird Day. National Bird Day celebrates “the beauty, song, and flight of birds,” as well as their role as indicators of ecosystem health.
    Nearly 12% of birds are endangered or threatened species. Parrots and songbirds are especially at risk, mostly due to loss of habitat and a reduction in food resources due to development.
    Many birds are also at risk by human habitation—crashing into clear glass windows and sliding doors. The best ways to reduce the risk of bird collisions involve making the glass less reflective: putting up vinyl decals, covering the window in a bug screen, installing frosted or etched windows, or using sun shades or awnings to reduce glare.
  • Term Part of Speech Definition Encyclopedic Entry
    celebrate Verb

    to observe or mark an important event with public and private ceremonies or festivities.

    collision Noun


    development Noun

    construction or preparation of land for housing, industry, or agriculture.

    ecosystem Noun

    community and interactions of living and nonliving things in an area.

    Encyclopedic Entry: ecosystem
    endanger Verb

    to put at risk.

    food Noun

    material, usually of plant or animal origin, that living organisms use to obtain nutrients.

    Encyclopedic Entry: food
    habitat Noun

    environment where an organism lives throughout the year or for shorter periods of time.

    Encyclopedic Entry: habitat
    habitation Noun

    dwelling or place where an organism lives (habitates).

    indicator Noun

    sign or signal.

    reduction Noun


    reflect Verb

    to rebound or return light from a surface.

    threatened species Noun

    organism that may soon become endangered.