This post continues the story of the West Pacific Odyssey, the month-long epic journey on board the Professor Khromov from New Zealand to Japan.
We made a single landfall during this time at Chuuk (formerly spelled Truk) in the Federated States of Micronesia (Caroline Islands). I have visited Chuuk previously in 2010 as part of a wider tour of Micronesia. As I didn’t get to see much of the island group on this tour I’ve added a number of photos taken then.

Leaving Kolombangara in the Solomon Islands behind we sailed along the western side of Bouganville and close to the southernmost tip of New Ireland. The following day we crossed the Equator and we spent the following day at sea as well. On 3rd April we arrived at Chuuk in the Caroline Islands and spent the latter part of the day and the following morning on the island. The next three days were spent at sea. We arrived in Japanese waters on the 9th.

As we left the Solomon Islands we had great views of the volcanic summit of Kolombangara (see post four on the WPO for more).

The following morning we passed to the west of the island of Bougainville. Although geographically part of the Solomons, administratively it belongs to Papua New Guinea although it has been lobbying for independence for a long time. Many of the tribes in the highlands jealously guard their territory and are suspicious or even show violence to outsiders. Recently the security situation has eased and a bird tour to this little known island with its myriad of endemics was advertised for 2020. I’d absolutely love to go but a) is it really safe? b) am I fit enough to hike up the top of that mountain? and c) could I afford it? its incredibly expensive. I think this is as near as I’ll ever get to Bougainville.

On route we found a few Little Terns roosting on floating coconuts …

… but the birding highlight was this Beck’s Petrel, a small version of Tahiti Petrel which is mainly seen around Bougainville and New Ireland.

Beck’s Petrel. These images are shown at a smaller size as the bird was so distant.

Also in the area were some more Heinroth’s Shearwaters …

… and the next day, close to the PNG island of New Ireland we saw these Pygmy Sperm Whales.

They are very hard to separate from Dwarf Sperm Whale but as Pygmy Sperm Whale has more of a falcated dorsal fin.

As we approached New Ireland the sea state got calmer and calmer …

… and just as happened when we approached the Equator on the Atlantic Odyssey three years earlier, the sea took on an oily appearance. We were entering the doldrums.

However that wasn’t to last long, with New Ireland disappearing away in the distance we saw a waterspout, that is a tornado at sea.

As the day drew on the clouds got darker and darker …

… and there was a dramatic sunset.

It was really rough in the night, not what we expected as we neared the Equator, with a big, slow swell that moved everything around in your cabin. OK I’ve been through much worse on the way down to Antarctica but this is supposed to be the doldrums. The outer bulkheads were closed and we were banned from going on deck. There had been plans to stop the ship and going for a swim at 0 degrees (latitude that is not temperature) but of course that was cancelled, as was all the usual tomfoolery that usually accompanies ‘crossing the line’.

All we could do was gather on the bridge and watch the GPS as we moved from the southern to the northern hemisphere. It was the 1st April, if there were any ‘April fools’ it was us.

Taken within four metres of ‘crossing the line’.

Around the Equator and during the bad weather we saw hardly any birds at all, but between the Solomons and New Ireland and to the south and north of Chuuk we had good numbers of the common tropical seabirds including Sooty Tern …

… Red-tailed Tropicbird …

… this Red-tailed Tropicbird has a all white tail (just to confuse things).

Also seen were frigatebirds, this is an adult female Lesser Frigatebird.

Three species of booby were commonly seen around the ship, chasing flying fish or roosting on the superstructure. This an adult Brown Booby.

This Brown Booby can be sexed as a female on account of the greenish facial skin. A recent publication ‘Oceanic Birds’ by Howell and Zufelt, which wasn’t available when I did this trip, proposes that there are three species of Brown Booby, this is the Indo-Pacific form.

This is a adult Masked Booby …

… you can just see it’s pale eyes in the photo. The dark eyed race tasmani which occurs to off Australia has been illustrated earlier in my WPO account.

Red-footed Boobies come in several morphs. This is a typical brown morph here seen chasing flying fish.

This is the light morph. Red-footed Booby is the smallest of all the six species of booby.

Identification is complicated by these partially brown dark-tailed immatures.

Boobies would often perch on the superstructure as they scanned the ocean for flying fish and would sometimes roost there.

We arrived at Moen on the main island of Weno in Chuuk, one of the four states of the Federated States of Micronesia, in the afternoon but it took ages to get customs and immigration clearance.

… but as soon as we could we went for a walk …

Norfolk Island and New Caledonia were fully westernised developed islands, whilst the remoter villages in the Solomons were basic but rustic and attractive. Chuuk on the other hand just seemed tatty with derelict buildings and poorly repaired roads.

This derelict ship photographed over a line of washing between two tumbledown shacks sums up the air of neglect.

The people were welcoming enough though (see also the cheerful chappie in the photo two above)

In 2010 I did a comprehensive tour of Micronesia visiting some of the Mariana Islands, and Palau plus Chuuk, Yap and Pohnpei in the Federated States of Micronesia (Caroline Islands). As I didn’t take many good photos of Chuuk on this visit I’ve included some taken in 2010 to give a better idea of the scenery and wildlife of this island group. In 2010 we were staying in a hotel outside the town and so had to drive through it every time we wanted to visit anywhere. They were having big problems with the high tides flooding the streets. I don’t know if they have fixed it now or whether it was neap tides during our visit in 2019. This photo was taken in 2010.

In 2019 we birded an area of woodland around the ‘Japanese gun’ however you had to pay to see the gun itself and time was pressing. In 2010 we did visit the gun and accessed it via a tunnel through the hillside. Photo taken in 2010.

During WWII the Micronesian Islands were of great strategic importance, especially Chuuk due to the huge size of the lagoon and were occupied by the Japanese. This large gun was installed to defend the island of Weno from attack. Photo taken in 2010.
From Wikipedia:
Chuuk Lagoon, previously Truk Atoll, is an atoll in the central Pacific. About 1,800 kilometres (1,100 miles) north-east of New Guinea, it is located mid-ocean at 7 degrees North latitude and is part of Chuuk State within the Federated States of Micronesia. A protective reef, 225 kilometres around, encloses a natural harbour 79 by 50 kilometres, with an area of 2,130 sq km. It has a land area of 93.07 square kilometres (35.93 square miles), with a population of 36,158 people and a maximal height of 443 m. Weno city on Moen Island functions as the atoll’s capital and also as the state capital and is the largest city in the FSM with its 13,700 people.
“Truck atoll” was the Empire of Japan’s main naval base in the South Pacific theatre during World War II. It was the site of a major U.S. attack during Operation Hailstone in February 1944, and Operation Inmate, a small assault conducted by British and Canadian forces during June, 1945.

The gun was situated here to guard the approaches to Moen. However now the platform allows good views of the birds in the marsh below. Photo taken in 2010.

We saw a number of endemic or near endemic species in the area including this Purple-capped Fruit Dove. Photo by from weedmandan

… and the endemic and elusive Caroline Ground Dove. Photo by from weedmandan

Another Caroline Island endemic seen was the Oceanic Flycatcher Photo from weedmandan

As it was April the Pacific Golden Plovers were now in breeding plumage and about ready to head for the Siberian Arctic. I was given this photo and the ones of the Teardrop White-eye and Chuuk Monarch by another participant. Unfortunately I didn’t note their name. If you are reading this please let me know and I’ll credit you accordingly.

In 2010 we travelled to the island of Tol South in the south-west of the lagoon. There were two species, Teardrop White-eye and Chuuk Monarch that couldn’t be seen elsewhere. Also we saw Micronesian Pigeon which we also saw later in the trip. The climb was really tough and in parts much steeper than shown here. It was a real case of scrambling up on your knees. On the WPO a half-day trip to Tol South was offered but I declined. Those that did it managed to see the white-eye and the monarch ….

… indeed they saw something I didn’t see in 2010, the gorgeous white male monarch. As it was now the breeding season they might have been more conspicuous. Our late autumn visit in 2010 meant that the only ones I saw were drab juveniles.

When I went nine years earlier we had some local guides, indeed the entire village tried to be our local guide – which wasn’t very helpful.

The view from half-way up across the lagoon was stunning. Some of climbed much higher up Mount Winipot to see the pigeon, it was a really tough slog. Photo taken in 2010.

Here is the Teardrop White-eye also known as Grand Chuuk White-eye, a species found only on this island.

Our tour in 2010 was much more relaxed. Infrequent flights between the islands meant that we often had time on our hands, not something that you see very often on a bird tour. So we took the opportunity to go snorkelling. I’m not a great swimmer and I found it a bit tricky but I thoughtfully enjoyed it. Participant Richard Clifford was a keen snorkeler and brought an underwater camera. Photo by Richard Clifford in 2010.

The coral reefs were beautiful and full of lovely fish, this one is a Redfin Butterflyfish. Photo by Richard Clifford in 2010

But Chuuk Lagoon has the reputation of being the best wreck diving in the world. The lagoon was the base of operations for the Japanese Navy, an attack ‘Operation Hailstone’ in 1944 caught the Japanese unaware and the Americans were able to inflict major damage see Wikipedia – here The lagoon is littered with wrecked supply ship and some military craft. Photo by Richard Clifford in 2010

I had been interested in military aircraft as a child, so seeing the remains of a Mitsubishi Zero on the bottom of the lagoon was pretty exciting. Photo by Clubmarine

As we left the Chuuk Lagoon and entered the open ocean we encountered a number of ‘Tropical Shearwaters’. The thinking is that these species are essentially non-migratory and so each breeding population has evolved into its own species with distinct vocalisations and plumage. However they are certainly difficult to tell apart. Some like Bannerman’s Shearwaters and Byran’s Shearwater have already been given specific status. This form Puffinus bailloni dichrous is colloquially known as ‘Atol’ Shearwater. Photo taken by Mike Danzenbaker in the Caroline Islands. see here

We slowly made our way north, first through Micronesian waters then through the waters of the Mariana Islands, crossing the Mariana Trench which at nearly 11,000 metres is the deepest point in the ocean.

Of course we saw many of the birds I have illustrated earlier but we also started to see a number of shearwaters and storm-petrels, evidence that we were heading out of the tropics but I’ll save most of those photos for the final post. We also saw a number of cetaceans including this close Omura’s Whale. This was a species I hadn’t heard of before, although it was formerly called the ‘small-form’ Bryde’s Whale. It was only described as a full species in 2003 which is later than the publication date of the cetacean guide that I use. It’s range is tropical west Pacific from Sumatra/Java east to New Ireland and north to Japan. It reaches a maximum length of 12m so would just fit in our garden.

We also saw four (but only caught two in this shot) of the rare Blainville’s Beaked Whale.

Not too far north of Chuuk we found our first Matsudeira’s Storm-petrel. We were getting into the realm of the Japanese seabird specialities. More of that in next and final post about the West Pacific Odyssey.

But I’ll conclude with this photo of an exhaling Omura’s Whale seen over the Mariana Trench.
Hi Ian, I’m reading your blog for the first time today as I’m preparing a talk on our 2019 WPO for the Royal Navy Birdwatching Society which as you know has one of the largest databases for seabirds in the world. I see you have included my 3 pics from Chuuk Lagoon on your site. The Teardrop White-eye, the Chuuk monarch and the summer plumage Pacific Golden Plover. You are very welcome to these pictures and thank you for such a great blog. Nigel Hacking
Dear Nigel, I haven’t looked at my blog much recently as I’m busy with other stuff but if it’s not too late you’re welcome to use any of my photos as long as you credit me. Ian