E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Lapwing (The).
Shakespeare refers to two peculiarities of this bird; (1) to allure persons from its nest, it flies away and cries loudest when farthest from its nest; and (2) the young birds run from their shells with part there of still sticking to their head.
1
Far from her nest the lapwing cries away.
Comedy of Errors, iv. 2.
This lapwing runs away with the shell on his head.Hamlet, v. 2.