FLOCK (2)
Source: 566, 567
flock (2). Flock, v.i. to gather in crowds, assemble, collect
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Flock, v. i. [imp. & p. p. Flocked (?); p. pr. & vb. n. Flocking.] To gather in companies or crowds. Friends daily flock. Dryden. Flocking fowl (Zoöl.), the greater scaup duck.