MPI says it needs growers and local residents to report sightings so it can remove them from the wild and prevent damage to local crops and birdlife – a $1,000 reward is being offered.

Native to parts of Asia (Pakistan to southwest China), the red-vented bulbul was introduced to some Pacific Islands, where it's now a serious invasive pest.

It's not the first time the bird has been discovered in New Zealand. Groups of red-vented bulbuls have been eradicated from the Auckland region several times: in 2013, 2006 and in the 1950s.

Evidence suggests they arrive on sea vessels, which may be how this bird reached Tauranga.

Red-vented bulbuls are an unwanted organism. If any are spotted in the wild, call MPI on 0800 80 99 66.