ERRATA.
- xi. p. 2, line 3. The specimen obtained at Suleskerry Lighthouse has been proved to be an example of P. borealis.
- xx. p. 3, line 32. The winter range does not extend south of Zanzibar.
- xxi. p. 20, line 11. For "former" read "first-named."
- xxi. p. 14, line 15. For " That bird" read "The Whitethroat."
xv