New Zealand Part 2: Westland Petrel Flying High

Other than kiwis (following post) I was keen to catch up with a few other NZ birds I’d missed during my previous 6 or 7 visits to the country. One is an endemic breeding seabird, the Westland Petrel, which is an occasional visitor to Australian waters but one I’d missed on multiple pelagics. We had a few days in the delightful town of Punikaiki with its dramatic coastal scenery (below) and abundance of forest.

The petrels breed nowhere but in a 4km stretch of forest at elevations at between 50 and 250m within a couple of kilometres of the coast south of Punikaiki (below).

I positioned myself by Coast Road 5km south of the town at sunset near Scotsman Creek. The birds fly over here to reach their nests in the Te Ara Taiko Reserve after dark. About half an hour after sunset, between 50 and 70 petrels duly flew over at varying heights. Although getting dark they were clearly large, all dark Procellaria petrels. These birds are winter breeders and chicks are only just beginning to fledge now; many more birds fly over earlier in the breeding season.

While waiting for the petrels I saw a Shining Bronze-Cuckoo of the NZ-breeding nominate subspecies.

Although ticked, I was keen for more petrel encounters. Bruce Menteath runs petrel-viewing tours on his property which accommodates a couple of the 36 sub-colonies spread over a breeding area of 8 square kilometres. I met Bruce at sunset and walked the 200 stairs to a viewing platform used by petrels as a launching pad for returning to sea after feeding chicks. Bruce explained that birds usually land within 1 square metre of a favoured landing site and walk from there for 10-20 metres to the nest. Unfortunately we failed to see any adult birds – which was highly unusual - but Bruce showed me a well-developed chick in its burrow (below) on the way down. He refuses to accept payment if he fails to show clients an adult bird.

About 4000 petrels breed in the area and the total population is estimated at 10,000, so the birds appear to be holding their own. Locals do their bit by turning off street lights when newly fledged youngsters are at risk from vehicle and street lamp strike.

Other endemic NZ birds doing well around Punikaiki included Weka, which appeared to be everywhere. The species is one of the problem predators of petrel chicks and eggs. Weka (adult with chick below) on the trip generally were much more numerous than during my past visits to NZ, and were absurdly tame.

Grey Gerygone was abundant, as was the NZ Grey Fantail.

The charismatic Tui was all over the place.

So was the friendly Tomtit.

Two endemic ducks, NZ Scaup and Paradise Shelduck, were widespread and common, while Glenn saw a Blue Duck fly over at Arthur’s Pass, which we visited before Punakaiki and after arriving in Christchurch.

Variable Oystercatcher is common along the coast.

A thriving colony of White-fronted Terns can be enjoyed at close quarters at the Pancake Rocks south of Punakaiki.

After visiting Punikaiki and Picton (the subject of another post to come) we crossed from the South Island to the North Island across Cook Strait on the Islander ferry. I knew that at this time of year, Westland Petrels are quite common in Cook Strait and I saw several from the boat’s deck. Although quite distant, a couple were close enough for half-decent images (first and last in this post) and to clearly see the diagnostic bill features in the field.