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  2. Soundscape ecology - Wikipedia

    en.wikipedia.org/wiki/Soundscape_ecology

    A spectrogram of the soundscape of Mount Rainier National Park in the United States. Highlighted areas show marmot, bird, insect and aircraft noises. Soundscape ecology is the study of the acoustic relationships between living organisms, human and other, and their environment, whether the organisms are marine or terrestrial.

  3. Bird vocalization - Wikipedia

    en.wikipedia.org/wiki/Bird_vocalization

    Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs (often simply birdsong ) are the bird sounds that are melodious to the human ear. In ornithology and birding , songs (relatively complex vocalizations) are distinguished by function from calls (relatively simple vocalizations).

  4. Perception of infrasound - Wikipedia

    en.wikipedia.org/wiki/Perception_of_infrasound

    In this test, an anesthetized bird is presented with a single sound or a sequence of sounds, followed by an electric shock. The bird's heart-rate will increase in anticipation of a shock. Therefore, a measure of the heart-rate can determine whether the bird is able to distinguish between stimuli that would be followed by a shock from stimuli ...

  5. Wind industry faces questions about turbines killing birds - AOL

    www.aol.com/news/wind-industry-faces-questions...

    However, the American Bird Conservancy has utilized data from the U.S. Wind Turbine Database to determine that approximately 538,000 wind turbine-caused bird deaths occur each year."

  6. Bird - Wikipedia

    en.wikipedia.org/wiki/Bird

    Water birds have special flexible lenses, allowing accommodation for vision in air and water. [77] Some species also have dual fovea . Birds are tetrachromatic , possessing ultraviolet (UV) sensitive cone cells in the eye as well as green, red and blue ones. [ 116 ]

  7. Acoustic harassment device - Wikipedia

    en.wikipedia.org/wiki/Acoustic_harassment_device

    Acoustic harassment and acoustic deterrents are technologies used to keep animals [1] and in some cases humans away from an area. Applications of the technology are used to keep marine mammals away from aquaculture facilities and to keep birds away from certain areas (for instance in the vicinity of airports and blueberry fields).

  8. Sound localization in owls - Wikipedia

    en.wikipedia.org/wiki/Sound_localization_in_owls

    In sound localization, ITDs are used as cues for location in the azimuth. ITD changes systematically with azimuth. Sounds to the right arrive first at the right ear; sounds to the left arrive first at the left ear. In mammals there is a level difference in sounds at the two ears caused by the sound-shadowing effect of the head.

  9. Ornithology - Wikipedia

    en.wikipedia.org/wiki/Ornithology

    Techniques for capturing birds are varied and include the use of bird liming for perching birds, mist nets for woodland birds, cannon netting for open-area flocking birds, the bal-chatri trap for raptors, [78] decoys and funnel traps for water birds. [79] [80] A researcher measures a wild woodpecker. The bird's right leg has a metal ...

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