In cockyolly bird, a nursery or pet expression for ‘dear little bird’: cf. Dicky-bird.

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1837.  Correspondent says, ‘Cockyolly bird was familiar to me as a schoolboy in 1837.’

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1857.  Kingsley, Two Y. Ago, xv. So Major Campbell prepares the charming little cockyoly birds. Ibid. (1863), Water-bab., viii. 310. All the butterflies and cockyoly birds would fly past me.

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1877.  Besant & Rice, Son of Vulc., I. xi. 118. The little cockyolly bird is taken in the net.

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