Obviously the Doctor had never played parent to an autistic meta-meta on a sugar bender. Andrew shook his head, making a mental note not to allow Märet any more sweets for a while. "You say that now...." he muttered.

He looked up at where the others were looking, seeing the clumsy birds for himself, and frowned. "And why are there so many of them?" he asked. "D'you think they've been drawn in by the signal?" If so, it had to be interfering with their little brains, too, to make them act like that. With a glance back at Märet an Donna to make sure they were still following (Märet was, having swallowed the ice cream in a few big mouthfuls when they all took off), he weaved through the crowd after the Doctor.