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rockier

ˈrockier dial.
  [f. rock n.1 + -ier1.]
  The rock-dove (Columba livia).

1780 G. White Selborne xciv, There were among them little parties of small blue doves, which he calls rockiers. 1802 Montagu Ornith. Dict. s.v., Rock Dove... Provincial. Rockier. 1859 Atkinson Walks & Talks (1892) 350 The first proved to be only a domestic pigeon. The other, however, was a genuine wild rockier. 1862 Johns Brit. Birds Index, Rocker and Rockier, the Rock Dove.

Oxford English Dictionary

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