It is also used to express a trick or imposition, as in "Much Ado About Nothing" (ii. 3): "I should think this a gull, but that the white-bearded fellow speaks it."[217] "Gull-catchers," or "gull-gropers," to which reference is made in "Twelfth Night" (ii. 5), where Fabian, on the entry of Maria, exclaims: "Here comes my noble gull-catcher," were the names by which sharpers[218] were known in Shakespeare's time.[219] The "gull-catcher" was generally an old usurer, who lent money to a gallant at an ordinary, who had been unfortunate in play.[220] Decker devotes a chapter to this character in his "Lanthorne and Candle-light," 1612. According to him, "the gull-groper is commonly an old mony-monger, who having travailed through all the follyes of the world in his youth, knowes them well, and shunnes them in his age, his whole felicitie being to fill his bags with golde and silver." The person so duped was termed a gull, and the trick also. In that disputed passage in "The Tempest" (ii. 2), where Caliban, addressing Trinculo, says:
"sometimes I'll get thee Young scamels from the rock."
some think that the sea-mew, or sea-gull, is intended,[221] sea-mall, or sea-mell, being still a provincial name for this bird. Mr. Stevenson, in his "Birds of Norfolk" (vol. ii. p. 260), tells us that "the female bar-tailed godwit is called a 'scammell' by the gunners of Blakeney. But as this bird is not a rock-breeder,[222] it cannot be the one intended in the present passage, if we regard it as an accurate description from a naturalist's point of view." Holt says that "scam" is a limpet, and scamell probably a diminutive. Mr. Dyce[223] reads "scamels," _i. e._, the kestrel, stannel, or windhover, which breeds in rocky situations and high cliffs on our coasts. He also further observes that this accords well with the context "from the rock," and adds that staniel or stannyel occurs in "Twelfth Night" (ii. 5), where all the old editions exhibit the gross misprint "stallion."
[217] Some doubt exists as to the derivation of _gull_. Nares says it is from the old French _guiller_. Tooke holds that gull, guile, wile, and guilt are all from the Anglo-Saxon "wiglian, gewiglian," that by which any one is deceived. Harting's "Ornithology of Shakespeare," p. 267.