The advertisement call may be heard during the day or night almost any time during the year (Salvador, 1996). However, based upon the onset of the chief breeding season commencing in January, and of the secondary breeding season starting in April, it is reasonable to expect that those months punctuate peaks in call activity.

Some of the early recordings from the Air region of Niger, the Hoggar Mountains and from Mali are now deemed to have been improper logging of Bufo xeros.