A319 are generally found on the domestic & DUB runs (multiple daily flights to BHD, DUB, EDI, GLA and MAN) and from March North Africa (the exact destination escapes me), I would umagine thay have additional A320s as some are being reconfigured from mid-haul to short-haul config, although the BD website states A320s will get the refreshed min-haul interiors too.