The species - at least as far as specimens roosting in Northern Tunisia are concerned - seems able to give birth much earlier in the spring than the closely related species Myotis myotis or M. blythii in Europe or Western Asia:[3] Individuals born that year and able to fly were observed in el Haouariya caves May 24, 2011, (i.e. these juveniles were born between 3 and 4 weeks prior).[2]