Whis·tler n.
1. One who, or that which, whistles, or produces or a whistling sound.
2. Zool. (a) The ring ousel. (b) The widgeon. [Prov. Eng.] (c) The golden-eye. (d) The golden plover and the gray plover.
3. Zool. The hoary, or northern, marmot (Arctomys pruinosus).
4. Zool. The whistlefish.
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