[f. CROP sb.1 + -ER1.] A breed of pigeons having the power of greatly distending or puffing up their crops; a pouter.

1

1655.  Walton, Angler, 101. There be Cropers, Carryers, Runts.

2

1678.  Ray, Willughby’s Ornith., II. xv. § 2. 181. Pigeons…. Croppers, so called because they can, and usually do, by attracting the Air, blow up their Crops to that strange bigness that they exceed the bulk of the whole body beside.

3

1774.  Goldsm., Nat. Hist. (1860), II. IV. viii. 126.

4

1850.  E. S. Dixon, in Tegetmeier, Pigeons, v. (1867), 54. Pouters … Provincially they are called Croppers.

5

1891.  Daily News, 7 Jan., 3/4. Those Norwich croppers are not half so puffed up as they seem.

6