GENERAL HABITS AND TRAITS OP SWALLOWS 401 



1650. CuRTLEH, M. [ Albinotic] Variety of the Swallow (Hiiando rustica). 



< Zoologist, viii. 1850, p. 2700. 



1855. DouBLKDAY, H. White Swallow. < Zoologist, xiji, 1855, p. 4871. 



18.55. HussBY, A. A White Swallow obtained in East Kent. < Zoologist, 

 xid. 1855, p. 4.559. 



1863. Saville.S. P. Slate-coloured Variety of the Chimney Swallow. 



< Zoologist, xxi. 1863, p. 8834. 



1864. Anon. Weisse Schwalben. < Zool. Gart. v. 1864, p. 269. 

 1864. Anon. A White Swallow. < Zoologist, xxii. 1864, p. 8887. 



1864. BouLTON,W. W. White Swallow (Hirundo rnstica) near Beverley. 



< Zoologist, xxi. 1863, p. 8825. 



1866. Clogg, 8. White Martin. < Zoologist, 2d ser. i. 1806, p. 33. 



1866. Watkins, C. White Swallows. < Zoologist, 2d ser. i. 1866, pp. 455, 



456. 



1867. Hesse, B. Creamcoloured Sand Martin. <^ Zoologist, 2(1 ser. ii. 1867, 



p. 561. 



1868. CoRNALiA, E. Sopra doe cast dl Albinismo negli Uooelli. <^Atti 



della Soc. Ital. di Sc. Nat. x. pp. 449-458. 

 ITot seen— title from Zool. Beo. Paster montanui and Olielidon urbica. 



1868. Smith, C. Carions Variety of the House Martin. < Zoologist, 2d ser. 



iii. 1868, p. 1058. 



1869. Barrington, R. M. Albino Sand Martin. < Zoologist, 2d ser. iv. 



1869, pp. 1847, 1848. 



1870. Atkinson, F. P. Albino Barn Swallow [Hiruudo horreornmj. < Am. 



Nat. iv. 1870, p. 127. 



1871. BuooKE, A. B. White Sand Martin. <^Zoologist, 2d ser. vi. 1871, p. 



2440. 



1871. Walsh, W. H. White House Martin. < Zoologist, 2d ser. vi. 1871, p. 



2806. 



1872. Whitaker, J.jj'itn. White Swallow. < 2()0%is(, 2d ser. vii. 1872, p. 



3314. 



1874. Whitaker, J. White SwjiUow in Nottinghamshire. <C Zoologist, 

 2d ser. ix. 1874, pp. 4238, 4239. 



General Habits and Traits of Swallo^cs 



Having already spoken at some length of the two most 

 noticeable points in the economy of Swallows — their migra- 

 tions and their architecture — I may continue with some of the 

 other habits which birds of this family possess in common ; for 

 the group is so homogeneous that much of the material we have 

 acquired for separate biographies of the species furnishes the 

 occasion for remarks applicable to all. 

 26 B o 



