HIRUNDINID^. 53 



Land, and is the only species of Swallow which remains 

 throughout the year, a few couples being always to be 

 found in suitable localities. I once saw a very large 

 number at Hykomkap on the 20th of May. 



This species breeds in the holes of low rocks and clay- 

 banks. The nest is cup-shaped, and built of the usual 

 clay materials ; the eggs are five or six in number, white, 

 tinged with fawn, and spotted with brown. 



The iris in this species is of a very dark brown ; the 

 bill is brown, the upper mandible being darker than the 

 lower ; the legs and toes are brown. 



Measurements of a male : 



in. lin. 



Entire length 58 



Length of folded wing .... 5 



tarsus 06 



middle toe .... 6 



tail 23 



bill 7i 



CORACIARE. 



66. Coradas Caudata, Linn. Green-necked Holler. 



Coracias caudata, Des Murs, Icon. Orn. pi. 28. 



Strickland & Sclater, Birds Damar., Cont. to Orn. 



1852, p. 154. 



Layard's Cat. No. 96. 



Coracias dbyssinica, Chapman's Travels in S. Afr., App. p. 408. 

 Coracias caudata, Finsch & Hartlaub's Vb'gel Ost-Afrika's, p. 154. 



Sharpe's Cat. No. 36. 



Sharpe, in Ibis, 1871, p. 194. 



This species is common in the Lake-regions, and is 

 also pretty common in Damara Land, where, however, I 

 imagine that it must be partially migratory, as during 



