[29]“The Birds of Middlesex,” p. 47. [30]“Zoologist,” 1865, p. 9729. [31]Not always, as shown above. [32]_Cf._ Yarrell, “Hist. Brit. Birds,” vol. i. pp. 300, 301. [33]_Cf._ “Ibis,” 1865, p. 24. [34]“Ann. Mag. Nat. Hist.,” 1847, p. 135. [35]_Cf._ Bellamy’s “Nat. Hist. South Devon,” p. 205. [36]For this abstract of Mr. Knox’s observations, taken from his “Ornithological Rambles in Sussex,” I am indebted to Professor Newton, who has thus ably condensed them in his new edition of Yarrell’s “History of British Birds.” [37]For some further points of distinction the reader may be referred to “The Birds of Middlesex,” pp. 64, 65. [38]See Professor Newton’s remarks on “The Ornithology of Iceland,” appended to Baring Gould’s “Iceland; its Scenes and Sagas,” p. 409. [39]“Ibis,” 1861, p. 6. [40]“Ibis,” 1860, p. 229. [41]“Ibis,” 1862, pp. 343, 348; and “Journ. f. Orn.,” 1862, pp. 357, 360. [42]_Cf._ “Naumannia,” 1858, p. 425, and “Ibis,” 1862, p. 71. [43]_Cf._ A. G. More, in the “Ibis,” 1865, p. 123. [44]_Cf._ “Journ. für Orn.,” 1868, pp. 21-37. [45]“Syst. Nat.,” i. p. 288. [46]“Consp. Av.,” i. p. 247. [47]_Cf._ “Naumannia,” 1858, p. 425. [48]Capt. Beavan recorded it from Simla (“Ibis,” 1868, p. 79), but Mr. Hume showed this to be an error, the species mistaken for it being _A. sordida_ (“Ibis,” 1869, p. 120). [49]_Cf._ Dawson Rowley, “Ibis,” 1863, p. 37, and 1865, p. 113; Bond, “Zoologist,” 1870, pp. 1984 and 2383; and Rodd, “Zoologist,” 1868, p. 1458. [50]See Bree’s “Birds of Europe,” vol. ii. p. 155. [51]“Syst. Uebers. d. Vögel N.-O. Afrika’s,” p. 61. [52]“Birds of South Africa,” p. 148. [53]“Notes on the Birds of Damara Land,” by the late C. J. Andersson; arranged and edited by J. H. Gurney, 1872, p. 129. [54]See “The Field” for May 27th, June 8th, and June 24th, 1871. [55]“Zoologist,” 1863, p. 8444. [56]“Zoologist,” 1863, p. 8841. [57]Rodd, “List of the Birds of Cornwall,” 2nd ed. p. 11. [58]_Cf._ Hume, “Journ. Asiatic Soc. Bengal,” 1870, p. 116, and Blanford, “Ibis,” 1870, p. 534. [59]See his “Ornithology of the Straits of Gibraltar,” p. 224. [60]“Mag. Nat. Hist.,” vol. iv. p. 413. [61]“Nat. Hist. Ireland” (Birds), i. p. 377. [62]“American Ornithology.” [63]Professor Newton’s Appendix to Baring Gould’s “Iceland,” p. 408. [64]Gillet, “Ibis,” 1870, p. 306. [65]Von Schrenck, “Reise in Amurland.” [66]“A Spring and Summer in Lapland,” p. 281. [67]Tudbury, “Mag. Nat. Hist.,” vol. v. p. 449. [68]“Geology and Zoology of Abyssinia,” p. 347. [69]“The Land of Israel,” p. 105. [70]“History of British Birds,” vol. ii. p. 251 (3rd ed.) [71]Journ. As. Soc. Beng. xxiv. p. 277. [72]“Birds of North America,” p. 313. [73]Jones’s “Naturalist in Bermudas,” p. 34. [74]“Wanderings of a Naturalist in India,” p. 49. [75]See “The Birds of Middlesex,” p. 126. [76]Thompson, “Nat. Hist. Ireland” (Birds), i. p. 377. [77]Irving, “Tales of the Alhambra.”