Zombie 5: Killing Birds (1988)3.6 /10

Storyline:  A former soldier, now a bird specialist, lives near a swamp where he committed a gruesome murder years ago. When a group of college students arrive to research a rare bird, they unknowingly stumble upon the scene of his crime. As strange occurrences begin to unfold, they must confront the dark secrets of the past and the terrifying consequences of their presence.