Broome …

My first visit to Broome was as a participant in an Australian Wader Studies Group expedition. With a bunch of other volunteers we caught, measured, banded and released shorebirds over a period of about six weeks. I made good friends on that trip and some of them decided to make Broome their home.

The power steering failure in the car was due to a cracked transmission fluid cooler. It was beyond repair. A replacement would have to come from Sydney via Perth and would take a week.

This was a good time to have good friends in town, especially since the Broome caravan parks do not take dogs during the tourist season.

I am unsure of the collective noun for ornithologists but I favour a clutch over a flock. So a clutch of ornithologists were quick to chide me for my ID of Grey Butcherbird in the Kimberley, it was split years ago and is now the Silver-backed Butcherbird confirming the description by John Gould in 1836 as Cracticus argenteus. My apologies, here it is again this time correctly labelled …

Silver-backed Butcherbird

Broome is one of my favorite places. Let me give you a taste in a few photos.

Sun Pictures is the world’s oldest outdoor movie garden. It was built in 1903 as an Asian emporium owned by the Yamasaki family, part of it was used for Noh theatre. Tod Hunter, a pearler, bought it in 1913 and converted it to a cinema holding 500 patrons. It opened in 1916 with a racing drama Kissing Cup. The first talkie was Monte Carlo in 1933.

Until 1974 when a levee bank was built Carnarvon Street and the theatre was flooded at very high tides. It was joked that you could fish as you watched the movie.

It’s still going strong.

The Japanese played a major role in the pearling industry. The Japanese cemetery is one of the tourist stops.

The highlights for me are the natural areas, Roebuck Bay, the mangroves, plains and lakes.

Black-necked Stork
White-breasted Whistler

And on moonless nights there are plenty of stars …

The car was fixed very efficiently by Minshull Mechanical Repairs in Guy Street otherwise known as the 4X4 MegaStore (the Toyota Dealership being too busy to book it in for at least two weeks.)

It was time to thank Kerry and Chris for their very generous hospitality and hit the road.

Going straight …

AKA the Kimberley part 3.

After saying good morning to the Kimberley form of the Grey Butcherbird, an isolated subspecies Cracticus torquatus latens, we headed for the Mt Barnet Roadhouse.

The previous day we had set up the satellite phone and taken advice from our home mechanic regarding the steering. It was suggested that we get the car towed. That’s a 1200km round trip tow. What about the trailer? Or that we pour oil into the empty reservoir and try our luck. The appropriate oil is ATF if that wasn’t available try anything light. I was considering cooking oil as a field expedient, it would have made an interesting story for the blog but Mt Barnet was well stocked with all sorts of oils including ATF. We filled the reservoir and hit the road.

At intervals we refilled the reservoir. Fortunately we had bought quite a lot of ATF because the system had a bloody great hole in it somewhere inaccessible. Driving in a straight line was easy, anything else was not.

Some of the Gibb River Road’s best scenery is in that stretch.

It wasn’t our intention to stay in Derby but we broke the drive to Broome into two stages. It gave me the chance to photograph a sculpture that is carefully arranged to be at its best against the setting sun.

Next morning we did the sights of Derby and headed for Broome.

Derby port

 

Now with explosives …

I met Chris Hassell in 1996. We were in Broome, WA, to take part in an Australian Wader Studies Group expedition to catch and band migratory waders on the north-west Australian coast.

The leader of the expedition was the legendary Clive Minton, father of cannon netting in Oz, and there were some big name ornithologists along including Professor Theunis Piersma from the University of Groningen, Holland. Chris and I were just foot soldiers.

Chris, like me, is a pom. He comes from the midlands, not far from Leicester. He’d hardly settled in Oz when he set off for Broome.

The exercise we were engaged in involved setting nets just above the high tide mark in a spot where the birds would rest when the sea covered their feeding grounds. The nets were furled, camouflaged and attached to cannons that would shoot them over the unsuspecting flock when the time was right. The birds were then measured, weighed and banded with a numbered metal ring and released.

The work was hot and physically hard and the process considerably more nuanced than the summary above conveys. It ran for six weeks visiting Roebuck Bay, Ninety Mile Beach and Port Hedland. When it comes to cannon netting a good supply of willing volunteers comes in very handy.

Chris stayed on in Broome. For  a while he was a warden at the Broome Bird Observatory, then he founded and ran Turnstone Nature Discovery Tours, showing visiting bird watchers and other interested visitors the delights of the region. Because of his knowledge and considerable ID skills he became sought-after for ecological research and census work.

When Birdlife and the Global Flyway Network needed a researcher on the shore of Roebuck Bay he was their man. He now has a little army of volunteers of his own. No longer a foot soldier, in my view he has surpassed the mighty Minton as a catcher of birds. Chris, very modestly, disagrees.

Chris Hassell

One of his volunteers, a primary school lad named Daniel Aspey, wrote the catch report for September 24, 2017, and here are some excerpts …

Do I like birds? If I tell you that last week I went to our school book parade dressed as the Field Guide to Australian Birds, with a bird bath on my hat, does that give you a big enough clue?
This was my sixth cannon netting and there’s always a story. At school they tell us a good story has to have a problem. This time we had three. Firstly, the day was windy, which makes the birds flighty. Secondly, there were two Brahminy kites circling over head. And thirdly because of the big high tide, the net had to be set below the
tide. Listening to the pre-catch talk about how to deal with this was therefore very important.
What we didn’t reckon on was the fourth problem. One of the cannons didn’t fire . There are three cannons, right? Surely, two would do the job? But most of the birds (over 300) were in one corner of the net, while the cannons that worked, beautifully captured the 14 birds that were in the other corner.
Chris was very brave. Very, very brave. Even though this is the second time this has happened this season, he didn’t swear in front of the kids, or cry in front of the adults. He did disappear for quite a bit, though.
As there weren’t so many birds in the net, Chris gave us a great demonstration in tagging, banding and measuring the birds we caught.
What’s in it for us kids? Well, firstly, if you can be quiet and still, you sometimes get to go with him to the hide, which means you
actually see the net fire. You get to race to the net to get it out the water and help get the birds out and into the boxes. This time though, as there were so few birds, all the kids got to carry one to the cages, where the birds settle before tagging. If you’re calm and steady, you get to fetch the birds to the adults for measuring, and then release them in groups afterwards. Best of all, you get to take pictures of the birds up close. I really loved seeing the Ruddy Turnstone, the Grey Plover and the Greater Sand Plovers (who love pecking you).
People say you should never work with kids and animals, but at the cannon-netting they do both, and with explosives too!

There’s a great future for that kid. And the reason this work is done is to ensure that there’s a future for the birds as well. I’m sure someone has thought of putting a marina in Roebuck Bay, maybe a five star hotel and a golf course. Research gives us an understanding of population trends, longevity and breeding success. These are essential ingredients in any argument to sway governments towards preserving the bay.

Stops along the migration route are also invaluable links in the chain that determines the survival of migratory shorebirds. When the birds take off for their breeding grounds Chris takes off from Broome bound for Bohai Bay in China where he helps monitor their passage. This year’s Bohai Bay Report can be found <HERE>.

Could be a bad summer for Chris this year, he still supports the English cricket team, no future for him in parliament.

Low Tide …

There’s about 25 km of beach running from Gantheaume Point north to Willie Creek. This is Cable Beach, sun, surf, camels, tourists, very popular. But the further north you get the fewer people you encounter. The numbers would drop off faster if driving on the beach was forbidden, sadly it is permitted. There is some debate as to whether a full-time or part-time four-wheel drive is better on the beach. Personally, I think the best car for the purpose is somebody else’s car.

About 13 km up the beach from the Cable Beach Resort, or 25 km by road, is the suburb I know as Coconut Well, officially Waterbank. If you have a spare three or four million you can buy a nice home here. It won’t have mains electricity or town water but it will have a nice view.

At low tide there are some rocks exposed that are interesting to poke around in. Fish dart around in the tidal pools. There will be some migratory shorebirds about and perhaps a Frigatebird will fly over and if you’re really lucky you may see a Beach Stone-curlew …

Silver Gull
Beach Stone-curlew

The photo at the top is of an Eastern Reef Egret hunting through the pools. They often stand motionless, sometimes with their wings out to create some enticing shade. When a morsel presents itself the neck uncoils like a spring.

Roebuck Bay …

William Dampier made his first visit to New Holland in 1688. He explored this part of the coast on his second visit in 1699. Roebuck Bay is named after his ship. The sea is rich in invertebrate life some of which made a meal of HMS Roebuck’s planking. On the voyage home the worm-eaten ship was run ashore on Ascension Island before it could sink in open water. Dampier and his crew were marooned there for five weeks before being picked up and taken back to England.

There are two tides a day in the bay of about equal height (semidiurnal tides). The tidal range is massive exposing about 160 km2 of mudflat. The mud is rich in invertebrate life which provides food for the more than 100,000 migratory shorebirds that use the bay each year … HMS Roebuck’s revenge.

You can read just how incredibly rich <HERE>.

The north shore of the bay from close to Broome to Crab Creek is readily accessible. The Broome Bird Observatory is located close to the east end. The eastern and southern shore is a world of mangrove swamp and tidal creek more easily accessed from the water.

Tropical mudflats are a very different habitat than the tundra and steppes where the visiting birds breed. In summer the breeding grounds are so rich in mosquito larvae and other invertebrates that young shorebirds can feed themselves from the moment they hatch. On the other hand there’s no food available when the puddles are frozen or covered in snow so migration it is.

The migrants arrive in our southern spring and leave in autumn. They don’t all stay in the bay all summer, for some it’s just a staging post. Towards the end of their stay it is a great spot to quickly gain the weight that will be the fuel for the long flights ahead. Some birds do stay a year or two before making their first flight to the breeding grounds so there are some to be found all year.

The bay is Australia’s most important site for migratory shorebirds. The bay regularly supports more than 1% of the population of at least 22 different species. On any day during the wet season there are about 120,000 shorebirds out on the mud. The smallest is the Red-necked Stint. Much of the time it weighs about 25 to 30 grams (my little Fox Terrier weighs 10 kg, equivalent to 400 Stints). They will increase their weight by as much as 50% prior to departure on their 15,000 km journey to Siberia. The largest visitor is the Eastern Curlew at about 1 kg fuelled up and ready to leave.

Migration may seem like a very risky strategy but if a bird manages to make  the return trip once it is likely to do it many more times. Red-necked Stints have been known to live more than 20 years by which time they will have flown further than a return trip to the moon.

The bay is also home to the rare Australian Snubfin Dolphin.

At approximately 140 animals, the snubfin dolphin population occurring in the 100 km2 study area within Roebuck Bay is one of the largest reported in Australia to date and should be considered of regional and, indeed, national significance. Despite this relative magnitude, the population is small by conservation standards. We also provide preliminary evidence of fidelity to the study area for a majority of individuals …          <Murdoch University report>

Roebuck Bay is a unique place. It’s also a place under increasing pressure as Broome grows in size. Careful management is required if the natural values  are going to be preserved.

This post has been updated following discussion with my good friend Chris Hassell, a Birdlife International researcher involved in full time study of shorebirds in the bay.