PTEROCLIDvE. 135 
appear by the beginning of October. The latest I ever 
noticed was a single bird at Casa Vieja on the 31st of October. 
In my note-book I have one down as seen on the 9th of Oc- 
tober, in the middle of the Bay of Biscay. 
193. TuRTUR SENEGALENSis, Linn. The Egyptian Turtle- 
dove. 
This species is mentioned by Mr. Drake as found commonly 
in the southern part of Morocco, but does not appear to have 
been obtained by Favier in the north-west of that country. 
The absence of spots on the back, and its smaller size, will 
distinguish it from any other species likely to be met with in 
Morocco. 
Family Pteroclid^. 
194. Pterocles arenarius, Pall. The Black-bellied Sand- 
Grouse. 
Moorish. El Koudri. Spanish. Corteza. 
Favier merely mentions that this Sand- Grouse " occurs in 
Dar el Baidar.^' 
On the European side, this large species of Sand-Grouse, 
though extremely local, is resident in the marismas and near 
Utrera, nesting late in May, but does not appear near Gib- 
raltar. I do not think there is any migration of this bird. 
The different species of Sand- Grouse only lay three eggs, of 
an elliptical form, placed on the bare ground without any nest ; 
eggs of this species taken near Seville are of a pale cream- 
colour, marked all over with faint spots of very light brown. 
195. Pterocles alchata, Linn. The Pin-tailed Sand- 
Grouse. 
Moorish. El Gata. Spanish. Ganga. 
Favier states this species to be '' scarce near Tangier, but 
common about Dar el Baidar ;" and he says " they cross the 
Straits in spring, returning in August and July." 
This beautifully marked bird is the most common Sand- 
Grouse on the Spanish side, although very local, being abun- 
