The Collaborative International Dictionary of English v.0.48:

Stannel \Stan"nel\ (-n[e^]l), n. [AS. st[=a]ngella, stangilla;
   properly, stone yeller, i. e., a bird that yells from the
   rocks. See Stone, and Yell, and cf. Stonegall.] (Zool.)
   The kestrel; -- called also standgale, standgall,
   stanchel, stand hawk, stannel hawk, steingale,
   stonegall. [Written also staniel, stannyel, and
   stanyel.]
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         With what wing the staniel checks at it. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Stonegall \Stone"gall`\, n. [Cf. D. steengal, G. steingall. See
   Stannel.] (Zool.)
   See Stannel. [Prov. Eng.]
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