Insect Sampling

Sara and I have spent the last couple afternoons sorting frozen bugs. It’s at least an excuse to stay in the air-conditioned office…

Basically, we sample insects once each month to get an idea of fairy-wren food abundance. This means running around one afternoon with a butterfly net, sweeping it energetically through the grass (at predetermined spots along Annie Creek), then dumping the loot in a gallon-size ziplock, freezing it for two days, and picking through the subsequent mess with tweezers, carefully sifting insects from grass seeds. It’s a tedious process, but I’m learning some useful Latin. Want to know the order of grasshoppers? No worries. (It’s Orthoptera.) How about the order of beetles? Got that one, too. (Coleoptera.) And want to know what a ziplock full of half-thawed dead bugs smells like? Barfinabucketa. Official term.

Eating And Sitting

Sunday, and a reprieve from the end of a tough week. So what do we do? Sit around and eat all day!

I’m stuffed. This morning I slept in, then wandered up to the kitchen for a bowl of cereal. Then came the pancakes, egg frittata, and sticky rolls (the Aussies call them “scrolls”). After that, regular food was dispensed with entirely and I spent the rest of the day pigging out on chocolate, trifle, and other desserts. For dinner, another bowl of cereal. The farthest I walked today was a short amble from my bed to the kitchen and back – hardly a strain!

But it was well-deserved, since Jen and I ran a dusty half marathon yesterday afternoon (for the heck of it). And, speaking of Jen, she’s out of here tomorrow, on a plane back to the U.S. after five months working on a Crimson Finch project. Roughly half of Mornington’s staff will be turning over in May, so we’re getting ready for a new crowd around here. So, to kick things off, according to specific request from her mother, I hereby post all my best Jen photos – retribution for a soon-to-be-lacking communal dinner cook. Take that!

Up The Adcock

Among intense days, today was intense. Sara and I surveyed the upper Adcock River for fairy-wrens, the longest stretch we’ve done yet.

Things started early when Michelle dropped us before dawn at the closest road crossing. Sara and I hiked to our first point by the light of the full moon, watching the sun rise as we bushwhacked through mangroves and across twisting gravel bars. From there, we scrambled and surveyed upstream, stopping every 100 meters to play a fairy-wren tape, all day long.

From the farthest point, we turned around and navigated back to the dropoff crossing. By the time Michelle picked us up, we were once again hiking in the dark, using headlamps to illuminate the muddy mangrove mazes until well after dinnertime. Overall, we covered about 17 kilometers (11 miles), stopping only briefly for lunch and a couple snacks along the way.

Hiking was at times smooth, rough, passable, and brutal. In the afternoon the temps surpassed a hundred degrees (as usual) while we hauled ourselves over logjams, skidded out in slippery mud, climbed up and fell down riverbanks, shoved through springy mangroves and 8-foot-tall sorghum grass, swatted clouds of flies, faceplanted into orb spiderwebs, and avoided prowling crocodiles, sweating bullets at every turn. The terrain here is raw and unforgiving.

We found a few fairy-wrens, but a more unexpected discovery kept us guessing. About five kilometers from the nearest entry point, I stumbled across a full-size, stainless steel kitchen knife resting on a gravel bar. Who leaves that kind of thing lying by a river? And who was out there anyway, far from the remotest signs of civilization? The property belongs to a neighboring ranch, Mount House, and I wondered if maybe some cowboys were carving up a steer and misplaced their knife (another little ways and we found an entire cow skeleton, complete with perfect skull). Sara, though, pointed out it could have been a murder weapon, so we worked out our alibis just in case. But the knife was duller than high school geometry, too blunt to stab anyone, so I shucked it in my backpack with plans to find a sharpener back at Mornington.

Gouldians

It’s a bird seemingly too colorful for reality, but the Gouldian Finch really does exist – barely. It’s one of Australia’s rarest, most endangered, and most sought-after birds, and Mornington happens to be one of the best places to see it. In fact, the Gouldian Finch is one of the main reasons the Australian Wildlife Conservancy acquired this property at all.

Gouldians formerly ranged across northern Australia but populations were decimated by trapping (for the pet trade) and habitat loss. Today they’re found in just a few scattered areas, and may number fewer than 2,000 wild birds. At Mornington, though, they’re fairly common, and I see these guys just about every day. Researchers here have studied Gouldians intensively over the last decade since they’re a good indicator of tropical savannah habitat quality.

Interestingly, there are three color morphs. About 80% have fully black heads, but 20% have red heads (like the one in the photo, which I took this morning). If you’ve done your math, that leaves zero percent for the last morph, the near-mythical golden-headed Gouldian, which is so rare that it basically exists only in captivity. The genes are out there, though, so, even though a golden-headed one has never been seen at Mornington, it could happen…

Climbing Mount Leake

What could be better than sleeping under the stars on a warm night, on top of a mountain, with a cool breeze blowing, and 360 degrees of awe-inspiring view? After a solid hike with Sara, Jen, and Paul, what could be better than topping out on the highest point of Mornington Sanctuary (Mount Leake) just in time for a panoramic sunset?

Roasting flavored marshmallows while watching the lava-like glow of prescribed fires close below, lying flat on the sandstone to watch constellations, knowing that the closest company (other than Mornington Station itself) were a few folks at Fitzroy Crossing represented by a flickering light on the horizon 95 kilometers away – what could be better? And waking up to all-encompassing sunrise, in a grand place off-limits to all but Mornington staff? Nothing, really. Yesterday and today were days I will remember for the rest of my life.

Four of us sweated through an uphill, 2.5-hour hike yesterday afternoon to make it to Mount Leake’s summit by sunset. Butch, our near-resident helicopter pilot, had graciously flown a supply of water to the top so we didn’t have to carry much on the ascent. After a night in the sky (my sleeping pad was spread on the peak’s literal highest point, with steep dropoffs on both sides) and subsequent sunrise, we dropped into a deep gorge for the return hike and spent today meandering between swimming holes between sheer red cliffs. Not even a sidewall blowout on our truck tire could dampen high spirits all the way home.

Two-Day Fairy-Wren Survey

Thursday and Friday, Sara and I spent every waking moment surveying for Purple-crowned Fairy-Wrens along the Throssel River — a backcountry stretch too long to cover in one day.

We got up at 3:30 on Thursday morning and Michelle drove us more than an hour from Mornington Station, dropping us at dawn along a rough track near an escarpment called the Cliffton Range — pretty much the middle of nowhere. From that spot, Sara and I picked up the Throssel River and followed it south for 13 kilometers of dense, off-trail hiking, stopping every 100 meters to play a 2-minute tape recording of fairy-wren songs (and observing birds which responded to the tape).

The Throssel is particularly known for being infested with crocodiles, of which we saw a good assortment. A year and a half ago, a student looking for Purple-crowned Fairy-Wrens stepped into the water here to find a large croc latched around her knee. The croc wouldn’t let go, and the muddy river banks were too steep to climb out with the animal attached to her leg; luckily, someone else was there to pull her out, croc and all. They had to gouge its eyes out before it relented and flopped back into the muddy water. The student had to be evacuated by helicopter to Derby (a couple hours away), and subsequently underwent surgery back in the U.S. to reconstruct her kneecap. They say such attacks are extremely rare, but, six months later, a staff member at Mornington was bit in the calf while swimming and still has the scars to prove it. Two croc bites in two years at a place with an average population of 12 people – it’s something, that’s all I’m saying.

Anyway we went all-out, hiking and surveying, dawn to dark on Thursday, 12 hours straight with just a short lunch break. We went right through the heat of the day, over 100 degrees F, carrying 11 liters (25 pounds) of water in each of our packs, wearing long pants, and just generally gutting it out through thick grass, hot river rocks, and spiky pandanus stands. When it got dark we rolled out sleeping mats and flopped down to sleep at 6:30 p.m. under the stars, but mosquitoes descended with darkness, and I was up for 4 more hours alternately swatting mosquitoes and hiding from them under my sauna-like sleeping bag before it was cool enough to sleep. A kilometer or two in the distance, five prescribed fires burned like molten lava, lighting up the night underneath a half moon.

Friday morning Sara and I finished our survey, walked out to a road, and radioed for a pickup. It was sure nice to return to the land of air conditioning and smoothies – but not for long; this afternoon we’re headed for another night of camping. This time, though, it’s just for fun; four of us are climbing nearby Mt. Leake with plans to sleep under the stars tonight on the highest point in this region. We’ll see how it goes!

Backpacking Survey

Just back from an intensive 2-day survey of the Throssel River (which is why it’s been quiet here lately).

Lots of hiking with heavy packs in the heat through wild terrain, and one night under the stars and mosquitoes.

It was pretty full-on, as the Aussies say, and I’m off to bed, happy to once again have a fan and shower. Funny how relative civilization can be!

Photos and stories tomorrow…

Nests

The Purple-crowned Fairy-Wrens have stopped nesting as we head into the dry season, but that doesn’t mean other birds aren’t hard at work. Even after one of the driest wet seasons on record, the grass is green, leaves are on the trees, and babies are all over the place.

Crimson Finches and Double-barred Finches build some of the most obvious nests, which I stumble across almost daily; they’re both enclosed with side entrances (like fairy-wrens) and usually eye level in a pandanus or paperbark. Dove nests are at the opposite end of the spectrum, so flimsy that the eggs seem to hang suspended by a thread. Kingfishers nest in tree cavities, honeyeaters build suspended sock nests, Magpie-Larks construct solid mud structures, and Buff-sided Robins seek out a flimsy fork at the tip of a mangrove branch. Sara found a Pheasant Coucal nest on the ground amid tall grass, probably the most interesting nest so far. As for the fairy-wrens, they’re probably done until August at least, so our work now mostly involves weekly censusing and resighting efforts. Winter is coming!

Dingoes

After more than a month without seeing a dingo, I have seen two in the last three days, both at close quarters.

The first one I ran into (almost literally) on a long evening run late last week. As I approached on the dirt road, it stood on the shoulder and didn’t budge while I jogged past within a few feet. Then I glanced back and noticed it loping quietly along behind me, keeping pace. Suddenly I didn’t like this encounter so much; though dingos aren’t really a threat, to have one stalking me at sunset, several miles from the station, started to sketch me out. “I’m running away from it!” I thought. So I stopped running, turned around, and faced down the dog, which paused just a few feet away. After a sort of tense stare-off, it seemed to lose interest and quietly stepped into the grass.

On Saturday I saw another one by the Adcock crossing, though it was more properly wary and ran away on sight. Pretty much, they’re your standard, run-of-the-mill dogs, except they’re roaming around the Australian desert. Gives you a start to realize it’s not just someone’s pet. They seem to be active all day, which surprises me since it gets so hot (well over 100 F today, as usual). Imagine having all that fur!

Sunday Morning

I guess the rough week caught up with me, as I woke in an unusual depressed mood this morning. Could have had something to do with the all-staff dance party late last night (everyone was a bit tired this morning) compounded by a touch of homesickness after three hard field days, but I was surprised to find myself lackluster, aimless, lonely, and frustrated by it all today. My free Sunday morning seemed empty.

But an occasional soul-searching session doesn’t go amiss. The lows accentuate the highs, and it was good to have a very slow day today, rest, and recharge a bit, even in a drained mood. New plans are afoot later this week – literally – with two different overnight camping trips on top of regular field work. So there’s plenty to keep us busy!

Roy Creek

Sara and I rose at 4am so Michelle could drop us at the upstream end of Roy Creek, about a half hour’s drive from here, just before sunrise. The two of us set off, each with GPS, field notebook, binoculars, speakers, food, and five liters (12 pounds) of water, for a long, rough day of fairy-wren surveying.

We walked a transect along the creek for seven kilometers to a point farther south, playing fairy-wren tapes every 100m. Diabolical grass seeds, heat and humidity, sunburn, thick vegetation, ticks, slips, falls, and scratches combined for tough going, and it took us almost 11 hours to cover those seven ks. In early afternoon, both of our GPS units failed simultaneously; one went in the creek (along with data sheets and, well, the whole researcher), and the other simply died – suicide, maybe. By the time Michelle picked us up at a prearranged point in mid-afternoon, we were happy to retreat with observations of 11 fairy-wrens, as well as 15 Black Fruit Bats, a pair of Golden-headed Cisticolas, and several Brown Quail. Popsicles and burritos for dinner were well-deserved!

Dingo and Dead Wallaby

This morning I collected the three remote, motion-activated cameras we set up at a dead wallaby carcass two days ago, and hit paydirt! We caught a wild Dingo in the act of scavenging some of the rotting meat. This is a snippet from the low-res video.

Dingoes are Australia’s version of coyotes. They’ve only been here about 10,000 years and are basically just wild, brownish-colored dogs; they’re one of the top predators at Mornington Station (along with crocs). I heard some Dingoes howling near camp the other night, and have seen tracks everywhere, and Sara has seen two in the last week, but I have yet to properly set eyes on one. Soon enough! Meanwhile, it’s fun to watch our camera-trap video. You can see the two other remote cameras on the right side of the frame (neither one caught much of interest, so it’s good we set up three).

http://www.youtube.com/watch?v=zdE5cH7ssc0

Rain, Rain, Everywhere

Everywhere but here, that is. Thunderstorms have roamed around the Kimberley for the last four days, sending humidity soaring and giving us some interesting sunsets, but every single one has missed us so far. An Aboriginal community two hours north of us got more than four inches (110 mL) of rain overnight while we had zilch. We need some precip!

Not that the rivers aren’t flowing. Since it rained upstream, I was a bit startled to see the Adcock River raging yesterday morning, fifty feet wide, muddy, frothing, with large logs and other debris floating down, where I’d merely stepped across the previous afternoon without getting my toes wet. Lucky for us, Paul was able to get the truck across all the stream crossings yesterday on the tail end of a 2-day resupply trip, so, once again, I have all kinds of fresh food (30 bananas! 9 liters of milk! 3 kilograms of apples!). Life is good; it could just use a bit of rain.

Dead Wallaby

Sara found a dead wallaby day before yesterday at the edge of camp, and had the brilliant idea of surrounding it with remote cameras to see what showed up at the carcass. So we put up three motion-controlled cameras, one set to take 30-second video clips and the other two to take still photos, and left them there.

If things go well, we’ll get a shot of a dingo or something. If not, we’ll have spent time next to a rotting carcass for nothing. The stench is now wafting all over camp on the breeze. Hope it works!

Thunderstorms

Lightning is visible most nights, flickering like distant strobe lights while we bask under  starry skies. Last evening was no different, but one thunderstorm passed close enough to see actual forks and bolts.

Since it was going off in a giant, brain-like thunderhead, I grabbed my camera. Of course, no good bolts hit while the shutter was open, but you get the idea. Out of about 200 photos, most at 2 seconds, lightning lit up every single one. Quite an energetic cloud.

Canoeing Dimond

Long day, so today’s entry is sentence fragments. Canoe trip. Dimond Gorge (not sure why it’s spelled that way). Swimming and crocs and croc attack stories. Sunburn, ouch. New all-rounder hospitality recruits. Thunder, lightning, dry, green, red, 12 drops of rain. A bevy of volunteers in an air-con van which lacks any refrigerator.

Melty Tim Tams and warm ice water and sandy forks. Pigeon, Wallaby. Heat. Slippery rocks, stickery grass. Mud. More mud. More rocks. Great company. Awesome!

On Foot

I’m glad it’s almost Sunday, because the last two days have been long ones. After our canoe survey yesterday, I went for a long run, then stayed up past Mornington Midnight (otherwise known at 9pm, a brutally late hour) with some freshly-arrived hospitality recruits. And today I’ve covered more than 25 kilometers (15.5 miles) on foot, much of it off-trail.

This morning the roads were damp with a skiff of overnight rain. I was headed to cover a distant group of Fairy-Wren territories, which required a 4-kilometer bike ride followed by a 4-kilometer off-trail hike, but things got off to a bad start when my bike became hopelessly bogged and seized less than five minutes out. I ended up walking the whole distance; it took me two hours just to get back from my farthest point, a brutal hike in 92% humidity. I don’t think I’ve ever sweated so much in my life! I still had enough energy for my daily run in the evening, but was pretty cashed by the end of it. Tomorrow, we’re planning to sleep in, then go swimming at Dimond Gorge (yep, “Dimond”). Can’t wait!

Canoe Survey

Michelle and I rose early this morning – 4am – because we had a big project for today: surveying 13 kilometers of the Fitzroy River for Fairy-Wrens, by canoe.

Julie drove us out to Sir John Gorge in predawn darkness and paused there just long enough to see us drag the canoe down the rocky bank – a task that would become all-too-familiar throughout the rest of the day – before hightailing it back to station for breakfast. Michelle and I, with radios, provisions, and drybags (er, trash bags; don’t ask), hopped in the canoe and set off downriver.

Nine hours later, we hauled out at a prearranged point downriver, called for a pickup by radio, and gratefully extracted sore butts and backs to shore. In the interim, we stopped every hundred meters or so to play a 2-minute recording of Purple-crowned Fairy-Wren song in hopes of finding birds along the riparian strip. As it turned out, we found just three birds: a lone female, unbanded, and a banded pair that Michelle already knew about.

Most entertaining, though, were various sets of rapids. Unfortunately, the ongoing drought has resulted in lower-than-usual water levels, so we often got stuck on rocks and had to drag the canoe through whitewater. I think we did that eight separate times. A few rapids shot us like an amusement ride, and I could see why, on the last two surveys of this river, the canoe flipped at some point. No such catastrophes today; just a nice day on the river!

Snake Encounter

As I walked up to my room this evening, just after sunset, a crowd of half a dozen people were gathered just outside my door. I opened my mouth to ask what was going on, but, just then, Ben arrived on a quad, screeching to a halt in a cloud of dust, and jumped lightly to the ground. “Where is it?” he asked.

Trish pointed at a dark shape in the grass, and things suddenly happened fast. Ben crouched and dove, and, in the blink of an eye, held a wriggling 4-foot snake dangling by its tail. With his other hand, Ben opened a cloth bag and lightly dropped the snake inside, twisting the opening so it couldn’t escape. Then, almost jovially, he hopped back on the quad to transport the snake “a couple k’s down the road” where it might live a bit more peacefully.

I turned to Paul. “Was it a Mulga?” I asked. “King Brown,” he affirmed (two names for the same thing). The most feared snake in this part of Australia. One bite can kill you in less than five hours, so I appreciated Ben’s bare-handed snatch. But, then, he worked with Death Adders in a past project, so no big deal. I was just glad to see the snake taken somewhere else – away from my front doorstep.

Tomorrow Michelle and I are planning a big day, surveying a long stretch of the Fitzroy River by canoe for Fairy-Wrens. It’ll be good, she says, if we don’t tip over in the rapids at some point, which apparently happens more often than not on this survey. Stay tuned!

Home Brew

“Don’t add the yeast with the boiling water, or you’ll kill it,” said Richie Rich this afternoon (a nickname derived from the unfortunate coalescence of four different Riches at Mornington, after they all declined to be known as “Richard the First,” “Richard the Second,” and so on). “There are many ways to bugger a brew.”

Sara and I were learning the intricacies of home brewed beer from a master. “The cheapest beer at Woolworth’s [where we order groceries] is $1.30 per stubby,” he calculated. (A “stubby,” to us Americans, is a regular old bottle.) “But home brew works out to about $0.20 per stubby and tastes about the same as the cheap stuff anyway.”

So, we mixed the yeast, sugar, and some treacle-like magic “draught” mixture into a 23-liter tank, and set it aside to bubble away for the next week. Meanwhile, another batch from last week was ready for bottling, and the three of us spent 45 minutes disinfecting old bottles, siphoning in the new brew, adding carbonation sugar tablets, and sealing on new caps. Another two weeks, and it’ll be ready to drink – though the beer will probably taste better after a month.

Home brew is a major part of Mornington culture. The staff has been at it for years and people here have it down to an art. “You can’t mess it up,” says Swanie, but, almost in the same breath, “a lot of things can go wrong.” So, we’ll just have to see how this latest batch turns out!

Heat of the Moment

Not that I’m obsessive about the heat, but here are a few benchmarks I’ve noticed lately: (1) Afternoon high temperatures are usually near 107 F (41.5 C) and don’t vary much between 105 and 108; (2) The other morning it was 84 F (28.5 C) when I got up at 4:30 a.m.; (3) When I headed out for a run day before yesterday, an hour before sunset, it felt nice and cool – until I realized it was “just” 95 F (35 C) – then the sweat really started dripping!

As we head into fall and winter here, things should settle down a bit. Out of curiosity I looked up climate data for Fitzroy Crossing, which is about 90 kilometers from here; average highs in June and July (the coldest months) were closer to 90 F (31 C). Sounds lovely; can’t wait!

St. Andrews Cross Spiders

Someone told me these are called “St. Andrews Cross Spiders” because, sometimes, the extra webbing forms a cross shape around the spider at rest. I have no idea if this is true.

Still, it’s an easy name to remember. I see these spiders hanging out all over the place, often suspended above Annie Creek, and I’ve wondered many times how they manage to connect the first strand of webbing across five feet of open water – do they jump, climb around, or piggyback on unicorns? Their webs are nothing to mess with, either; two Crimson Finches have been found caught in spider webs here this season (the spiders, apparently, balked at finding a bird in their net, so nobody benefited). Not something you want to walk into!

I have a case of heat rash on my ankles and calves, bad enough that I only slept one hour last night (too itchy to sleep). It’s kinda like poison oak – bumpy, scabby, and just generally gnarly. If it gets any more photogenic I’ll post a photo here – after all, misery loves company! For now, I’m spending 30 minutes at a stretch with my feet immersed in a bucket of ice water, twice a day. It’s actually quite pleasant, even if the rash continues, to feel a touch of frostbite once in a while.

Easter

This afternoon the high temperature hit 107 degrees F (41.7 C), as usual, but everyone was sitting around on Easter Sunday, so it wasn’t too bad. We spent the afternoon playing Cranium (a board game) in the air-conditioned office. And at least this holiday wasn’t as hot as Christmas, which was a roasting 113 degrees F here (two months before I arrived); a bit different than the snowy Christmases back home!

Paul and two accomplices (er, the Easter Bunny) hid 87 chocolate eggs around the premises last night, in the research lab, in the kitchen, outside – and no doubt they’ll be turning up for weeks. I shudder to think what 107-degree heat might do to a chocolate egg over such a long period; guess we’ll find out soon enough. Meanwhile, every time I stumble across one, it makes a nice treat.

Easter is just beginning in the U.S. – have a good one!

Story of a Cuckoo

I was excited to discover a Fairy-Wren nest with three eggs a couple weeks ago. When Michelle and I went to band the seven-day-old chicks, though, we found only one giant baby in the nest, almost twice the size of an adult Purple-crowned Fairy-Wren. A cuckoo!

Cuckoos in Australia are like cowbirds in North America: they lay eggs in other birds’ nests, hoping to pawn off parental responsibility on other species. Cuckoo chicks hatch quickly and push out all other eggs in the nest. Sometimes, the outcome is a bit ludicrous; I recently observed a tiny Bar-breasted Honeyeater feeding a Brush Cuckoo fledgling more than three times its size. You’ve got to wonder what they parents are thinking at that point – are they proud to raise a giant?

Fairy-Wrens aren’t often parasitized by cuckoos, probably because their nests are enclosed. Last season, one female Horsfield’s Bronze-Cuckoo laid single eggs in four different wren nests along Annie Creek (DNA confirmed that the eggs all originated from one female). The nestling we found this week could have been a Horsfield’s, or maybe a Brush Cuckoo; after taking a blood sample, we’ll eventually be able to figure it out in the lab.

In this case, the cuckoo didn’t make it. At 10 days old, it was eaten in the nest by a goana at 11am on March 30. How do we know? A motion-sensored camera trap positioned on the nest actually caught a 15-second video of the lizard sneaking up to the nest. The video lines up with my field observations: happy Fairy-Wren parents feeding the cuckoo chick at 6am on March 30, and an empty nest the next morning. Life is rough in the wild.

Yellow-spotted Goanas

The first time I saw a five-foot lizard walking around here, I was a bit surprised. Now, I’ve seen so many that they blend in with the wallabies and crocs.

The biggest ones are the Yellow-spotted Goanas. They look pretty much like giant lizards with blocky heads, thick legs, and long tails, and walk with a curious sideways gait. They’re no danger to people, but goanas are the main predator of eggs and baby birds here. Eighty percent of baby Fairy-Wrens are eaten before they even leave the nest.

Sometimes a goana will be hiding in dry leaf litter or grass when I come walking along, and it will shoot out from under my feet at the last second with all kinds of noise. Mostly, though, they regard humans with a kind of impassive, aloof stare, and meander on their own business, perenially searching, probing, and shuffling along, eating whatever they can find – bugs, frogs, baby birds. Oh, to be a goana!