The Cormorant(1993)

For a young couple, the small cottage tucked away in a quiet village in the mountains of north Wales, a legacy from a distant, estranged uncle, is a dream come true. The one condition of the inheritance is that they keep the uncle's beloved pet cormorant. They soon discover, however, that the cormorant is no mere bird, but a foul and malignant creature that may exact a greater price than they are willing to pay. Filmed as part of the BBC series, "Screen Two".