Bangor University has been forced to apologise to hundreds of students after their exams were disrupted - by pigeons.
The university had to reschedule assessments for 224 law and modern languages students, whose exams were stopped because of the noise from a pair of pigeons that had found their way into the examination hall.
According to Seren, the Bangor student newspaper that first reported the story, the pigeons were already in the hall when students took their seats on Tuesday morning. The exams were not postponed until around 45 minutes later, however, despite invigilators being aware of the birds.
One student told Seren: "There were two pigeons that somehow got in and they were on top of the organs in the back of the room and would not just shut up."
It is unclear how the pigeons entered the hall, though they may have flown through some missing windows near the roof.
Following the postponement, many students took to social media to express concerns that their marks would be affected or that they would be unable to attend resits.
The university said: "First-year and third-year students following modules in public law and international law were those mainly affected.
"Bangor University has apologised to the students concerned and in addition to rescheduling the exams, have assured students that they will not be disadvantaged as a result of this disruption.
"Other students who were sitting other papers were relocated and were able to continue with their exam.
"The pigeons left the hall before the afternoon exam session, which went ahead as planned."