Storm-petrels of New Zealand

On any birding trip to New Zealand, the many possible Procellariformes are going to be a highlight, within this most wonderful order, the storm-petrels and especially the relatively recently rediscovered (2003) New Zealand Storm-petrel are often at the top of one's wishlist. As well as the NZ Storm-petrel, White-Faced and Grey-Backed may be encountered, less often seen are the Antarctic dwelling Black-Bellied and also Wilson's.. There is an ocean of possibility, especially during and after extreme weather events. During my trip I encountered four storm-petrel species and photographed three well. Again, the boat trips (and weather conditions!?) were all organised by Wrybill (http://www.wrybill-tours.com/)

First and in my opinion foremost, the New Zealand Storm-petrel (appropriately, Fregatta maoriana). This species is usually seen in the Hauraki Gulf, though I believe there are several records off Whitianga and even a couple of accepted records now in Australian waters, so how far they range is up in the air. The species breeds on one of the islands in the Hauraki Gulf, Little Barrier Island I believe. 

First, a comparison shot of a NZ Storm-petrel alongside White-faced. Note the size difference. The two species also behave differently with the NZ Storm-petrel generally having a much faster and more bouncy flight. White-faced will feed in a relatively stable position, whereas the NZ Storm-petrels certainly didn't stay put for long. 

Below, a feeding pass. The birds were attracted to the boat by 'chum', discarded waste products from the fishing industry which this chap/ess(?) made the most off. 

A storm-petrel dancing along the water. Note the streaking on the white belly.

The below photograph is one of my top shots of the trip for sure. A backlit bird skipping across the water having just made a feeding pass. 

Next up, White-faced Storm-petrels. Three of the six subspecies have been recorded in NZ waters, I will not attempt to identify to sub species level but it is likely that the birds I photographed are 'maoriana' the subspecies that breeds on the New Zealand mainland, Auckland Islands and Chathams. I observed this species in the Hauraki, offshore from Kaikoura and also to the east of Stewart Island.

Below is my favourite shot of this species. It took several hundred attempts to get this low to the water, forward facing positioning. A key factor was waiting for a bird to be high in the swell whilst the boat was positioned lower down. 

Finally, this is my one and only photograph of a very grey looking Black-bellied Storm-petrel. This bird didn't stick around unfortunately.  Photo taken offshore to the east of Stewart Island.

Enjoy and feel free to comment/share with anyone who might enjoy this post. 

Wrybill

Anarhynchus frontalis

This small, bizarre and endearing species is the only species of bird in the world to have a bill bent entirely in one direction, possibly an adaptation giving a foraging advantage along the pebble banks of its breeding grounds. It is found only in New Zealand, where it breeds on the braided rivers of the South Island. Unfortunately, like many endemic New Zealand birds, they are vulnerable to predation by introduced mammalian predators such as stoats and rats. This problem may intensify in the future as some braided rivers are colonised by an invasive algae which chokes smaller channels and can open up previously inaccessible dry areas of the riverbed. We will see what the future holds.

Outside of the breeding season, Wrybill can be found around certain coastal mud flats and estuaries of the North Island, such as the Firth of Thames, where some of these pictures were taken. In order to get within photo range, I positioned myself low to the ground either along a water edge where birds were feeding or 30 yards or so from where individuals were roosting. In all cases, after a relatively short period of time spent patiently watching and waiting, Wrybill approached me to within 3m - much too close to photograph but an unforgettable and refreshing experience. 

 This individual above was particularly curious, here on the approach the bend in the bill is fairly evident. 

Below, some reflections, this bird spent some time posing at an ideal range. 

The bird below is roosting during a high tide, this was one of a flock of perhaps 200. 

As the tide came back in, birds started to wake up. First things first - a good stretch followed by a yawn!

Finally, the birds headed down  the beach to start foraging.. 

I attempted to take some flight shots, however both the sessions I spent with these birds I ended up in a position from which I found it exceedingly difficult to achieve. I will add to this that don't have much experience photographing wading birds in flight - a nice challenge that I will come back to soon hopefully!