Passeridae Philetairus socius Versamelvoël (A) Native to Southern Africa Endemic to Southern Africa Conservation status: Least concern Roberts' no.: 800
This amazing bird breeds in a colonial nest in desert areas, up to close on 500 birds. It has a domed roof and below this has chambers maintained continuously for, in some case, of up to 100 years! It also uses telephone poles and other man-made structures.
Interestingly, it generally will not breed when rainfall is low (eg below 20mm). In drought times it is unlikely to breed at all.