The arrival of the Nightjars each year from Africa cause great excitement amongst the ornithological community at Wellington. A ground-nesting nocturnal bird, they arrive on the heathland each May where they hunt and nest. A loud display churring at night to attract a mate is followed by a display flight where the male takes off, flies around and claps his wings together before returning to his perch and calling again. Dark and mottled in colour to blend in with the vegetation of the heath they are on the Red list as being endangered so are afforded the highest protection level. The creation of the right sort of habitat as occurs at Wellington means that these birds keep coming back to nest and breed.