Santiago, Cape Verde Islands.
Closely related to C. edithae (which see) and C. albus. Isolated population on Socotra (relatively large birds) might be a separate race. Monotypic.
Desert regions of C Asia, N Africa and Middle East: S & C Kazakhstan S in plains to Turkmenistan and probably SW Tajikistan; Cape Verde Is; from S Morocco, Algeria (except N) and S Tunisia S to Mauritania and N Senegal, E to Libya (except N), N Mali, Burkina Faso, Niger, N Nigeria, C Chad, Egypt (including Sinai), N & C Sudan and W Eritrea; Israel and Jordan S throughout Arabian Peninsula, E through S Syria, C & S Iraq and S & E Iran to SW Pakistan (Makran coast) and plains of N Afghanistan (probably also extreme SW Afghanistan, in Seistan); Socotra I (off NE Somalia).
Food and feeding
Status and conservation
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