Saturday 27 April 2013

The onset of winter.


Though the work-load has now decreased a bit the last few weeks still seem to have flown past; we've been on our own 6 weeks now and it feels more like two or three.

Winter is kicking in as the streams are now frequently frozen and the dusting if snow on the tops looks like it might stay.

Steph checking on a Wandering Albatross chick.

Frozen Flagstone Pond and a dusting of snow on the mountains.
We've had our first real storm, the most impressive result of which was the sheer volume of kelp and other seaweed thrown up onto the beach. It's out past the length of the jetty, looking like a weird, moving snake-covered jungle floor or something.

The view down to base from near the top of Tonk. 
With it came a good amount of se life, most of which we'd never otherwise see: starfish, bivalves and large crustaceans amongst other unidentified bits. We've given it all the generic name 'aliens'. Part of my winter task involves recording marine litter so I've a good excuse for beachcombing.

A variety of starfish washed up during the storm.

Penguins and Seals

The number of penguins at Big Mac has dropped quickly from 80,000 to about 10 as they all head off to sea, having spent the last few weeks moulting into their winter plumage. Gentoos are still present in small numbers.
The seals are leaving us too, with only a few puppies found around the beaches and fewer and fewer adults up in the tussoc grass. It can be a strange time of year as the joy of seeing independent puppies swimming off on their own is tempered by those who remain, too weak and skinny to head off. It's always the way with nature.


Giant Petrels

My main work season begins and ends with the Geeps. When I arrived in November I was doing a daily round of the study area, looking for newly nesting Southern Giant Petrels. In the last few weeks I've been around all their chicks, ringing them and attaching tiny geolocators to a select number. They will soon fledge (as the Northern Geeps have already done) and head off for several years to explore and mature. Little is known about where they travel in this time but many return to their place of birth to mate and nest. Hopefully whoever is here then can retrieve a few of these devices and shed some light on the mystery. As always this data will help us understand their lifestyle and hopefully enable us to better protect them.

Southern Geep chick ready to fledge having lost all its downy feathers.

Albatrosses

The albatross chicks are all getting bigger and the Black-brows have started to fledge. Not many mind, and the colonies are still full of mature-looking birds jumping up and down and madly flapping their wings, getting the feel of the wind blowing through them before they take that first plunge. I've been helping Steph with some of the chick-weighing so know from first hand experience how much bigger and more aggressive they're getting.

Black-browed Albatross chick exercising those wings.
The Wanderer chicks are looking fat and fluffy, with almost all of them left on their own now.

Wandering Albatross chick getting used to the view.

Around base

With a little more free time, and some horrible weather, thoughts turned to our midwinter presents. This is a south tradition, like a secret santa, when each person randomly picks someone else on base to make a gift for. A tremendous amount of effort and care has gone into gifts in previous years and I'm keen to get working on something.
Craig showed us round a few of the tools in his workshop in a basic woodworking class, should we wish to use any of them. As part of his demonstrations we tried making a load of equal-sized and smooth blocks which just happened to turn out ideal for giant jenga.

Safety first with giant jenga.


Jerry

Saturday 6 April 2013

First Winter Blog


All change at Bird Island

I arrived back on 14th March. Later than planned due to bad weather, but that meant I had a chance to see KEP again, this time in the snow, a lot of which had fallen while I was out feeling rough at sea. There was a decent amount of snow remaining when I got back to Bird Island and I had time to race up the valleys to play in it and appreciate being back while it was sunny and the ship's crew were deciding on a plan of action for last call.

The snowy La Roche and South Georgia from the top of Gazella.
Ruth, Jen, Jon, Tamsin and Iain (who I'd only briefly crossed over with) headed off later that afternoon. A strange and emotional departure; we weren't sure if they'd return the next day or if that was it. To go from living and working so closely with people and then having half of them suddenly leave is a bit daunting, particularly when they know so much about the place and the work.

Our last view of the others as they are shipped off to the RSS Ernest Shackleton  and return to the UK (via a trip down to the peninsula).
They didn't return, just a few of the crew came back in the RIBs to pick up outgoing cargo and waste as well as dropping off a few bits of cargo, fresh veg and what post they had for us.

It's taken a bit of getting used to running the base with just four people – cooking comes around twice as often, there are more cleaning jobs each, the place can easily feel a lot quieter if a few are out working. We've not been able to properly settle into the more relaxed winter regime yet as there's still a lot of work going on:


Penguins / Geeps

The Northern Giant Petrels are fledging, while the Southerns are not too far behind. I'm carrying out weekly rounds to check on them and will soon be out ringing the Southerns and sending a few on their way with tiny GLSs so we can find out where they travel to and feed in those important few juvenile years.

Large Southern Geep chick in the snow.
There's not too much penguin work at the moment as all their chicks have fledged. Gentoos are finishing their annual moult spread sparsely around the beaches, while the Macaroni colonies are full as the adults moult before heading out to sea for the winter. We managed to take advantage of a clear evening to head down to the bottom of Big Mac to watch them arriving and departing, riding in on the breaking waves and struggling through the kelp.


Macaroni penguins emerging through the breaking waves onto the rocks.
Following the confident one on their way back up through the colony.
Big Mac at sunset.


Albatrons

Black-browed and Grey-headed Albatross chicks are getting pretty big now, not far off fledging. I've been out helping Steph weigh and ring them. By weighing on specific days after hatching we can study how they progress and how healthy the population as a whole is. It is also very useful data for predicting how future changes to food supply will affect these species.

Black-browed Albatross chick looking angry, as they all do.
The Wandering Albatross eggs have hatched and the first chicks are starting to be left unattended, their parents heading off to sea and only returning to feed them. It was the monthly census on 1st April and I headed over to Farewell Point on the east end of the island, checking nests on the way. It was a cold but clear day and I took advantage of this and the early start to head back via the ridge at the top of north cliffs. This tiring and walk and occasional scramble was well worth it, offering some magnificent views across Bird Island and South Georgia. I finished up with my first ascent of La Roche, at 356m the highest point on the island by some distance.

Wandering Albatross without parental support.

Views along the ridge - steep and spectacular.

Seals

The seal work continues to fill days, with the team of three dropping to one with the rest of us drafted in to try and fill their place. The beach is a lot quieter as adults and puppies alike spend more time out at sea and Hannah spends all day walking up and down the valleys looking for specific puppies to weigh.


Back on base

It's starting to feel like winter as the nights draw in – it doesn't get light until about 9 and is dark by the same time in the evening. As we've all still got loads of work to do we only manage the odd evening off. The best one so far was Craig's birthday. He decided on a Hawaiian theme, complete with barbeque and hot tub: a great way to kick off our winter celebrations.

Not BAS-issue winter clothing.
"If I keep telling myself it's tropical it will be."
An unexpected and lost visitor - Cattle Egrets aren't unknown here, in fact one a year is about average, but they still look very out of place amongst the penguins and seals.

A rare clear sky offering amazing views of the Milky Way.

More regular photos and updates at: www.blipfoto.com/JerryATG

Jerry