References
- 1862 . Zoology of Ancient Europe 30 – 30 . London and Cambridge
- Cf. Zoology of Ancient Europe London and Cambridge 1861 397 397
- Mr. Blyth just six and twenty years ago, exhibited to this Society some bones which had been left in a preserved skin of this bird P. Z. S. 1837 122 122 and Ibis, 1861, p. 396, note)