THE BIRDS OF ALGERIA. ii 



dusk, and the note, uttered incessantly until after 

 (lark, is said by Canon Tristram to resemble that 

 of a Partridge. The eggs, laid on the bare sand, 

 are invariably three. 



5. TiiK PixTAiLED Sand Grouse Pterocles alcliata 

 (Linnrrus), is also extremely common in the central 

 and desert areas. In its habits it closely resembles 

 the preceding species. 



6. The Spotted Sand Grouse Pfefocle.t coronatua, 

 Lichtenstein, is confined apparently to the remote 

 southern deserts, 



7. The Senegal Sand Grouse Pterocles seiiegal- 

 en.sis, Shaw, is also an inhabitant of these remote 

 desert regions. Canon Tristran:i asserts that he saw 

 another species of Sand Grouse near \\ aregla, the 

 most southern oasis he visited (lat, 32°), but was un- 

 able to obtain examples. There can be little doubt 

 that many other species remain to be discovered 

 upon these vast awful plains of the Libyan Desert. 



8. The Andalucian Hemipode Tuniix sijliatica 

 (Desf.), is said by Taczanowski not to be rare 

 amongst the shrubberies at the foot of the moun- 

 tains, but I did not have the good fortune to meet 

 with it anywhere in the province of Constantine. 



9. The Rock Dove Cohnnha lin'a, Brisson, is 

 commonly distributed throughout all the rocky 



