| 摘要 |
A UV (ultraviolet light) reflecting cat collar adapted to be carried by a predatory animal is provided. The device reflects light in ultraviolet wavelengths to which many species of bird have a pronounced sensitivity as UV reflectance is strongly involved in mate selection, territorial displays, and foraging for food by many bird species. Therefore, stationary or moving cats wearing the UV reflective collar will be highly visible, during the day and crepuscular periods (i.e., dawn and dusk), to many species of birds that can, in turn, avoid predation by earlier detection of hunting cats and taking evasive action. Predation by domestic cats is a major source of mortality for songbirds and represents a significant conservation threat to many species. Cats killing birds is also a source of concern and distress for many cat owners. Ultraviolet reflecting-fabrics, -materials, or -coatings are either firmly attached to the exterior of a standard cat collar, or the entire collar is made of UV light-reflecting material or covered in UV-reflecting coatings. Different fabrics or coatings that reflect or absorb different wavelengths of ultraviolet light may be arranged in patterns along the collar to enhance visibility to a wide range of bird species with varying sensitivities to different UV wavelengths or contrasting patterns of UV and visible wavelengths. Cats wearing these collars during daylight will be more easily detected by birds that, subsequently, can take evasive action and alert other birds through alarm calls.
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