The three smaller pictures can be dated to 1764, when Spackman was working on his second set of smaller scale, largely single bird compositions. The ouzel is identified in Ada K. Longfield, "More About Samuel Dixon and His Imitators", Irish Georgian Society Bulletin, vol 23, Issues 1 & 2, p. 25, fig. 20. Two of the birds in the larger compositions, the macaw and the peacock pheasant, were also depicted individually in this 1764 set. It was sometime after this last set of small scale pictures was completed and Spackman's death in 1771 that he began producing larger double bird compositions.