Full Moon Tuesday

I woke up quite early this morning (not difficult when the seagulls keep jumping around on your roof, and the sea lions continuously bark at one another…!), and was rewarded with the most astonishing full moon:

The moon (!), the stars, and Race Rocks Lighthouse

The clear night translated into a beautiful sunny morning, so I headed up the ladder to the roof of the generator room to give the solar panels a good scrub and maximise energy generation…

Everyone’s favourite task…

… and duly managed to run the desalinator purely off solar power from just before noon until around 3:30, when the clouds started to fall in.

Generation eventually went as high as 5kw!

 

Ecological Notes: 

  • The juvenile male elephant seal continues to hang out on the island, whereas I didn’t spot either of the females all day.

    Always keeping a watchful eye in between snoozes…

  • Sea lion numbers continue to increase steadily: it’ll be interesting what tomorrow’s census yields

** All wildlife photos taken at the furthest distance possible, and may be cropped to improve detail! **

 

Facility Work:

  • Solar Panel clean
  • Stagnant Water removal and Anti-Algae Treatment of Generator Room roof to ensure it doesn’t become treacherous to work up there
  • Topped up generator fuel
  • Hoisted new flag

Noted Vessel Traffic:

  • No visits to the reserve
  • Extensive coastguard exercises on both sides of the Strait

 

Weather – Current:

http://www.victoriaweather.ca/current.php?id=72

 

Weather – Past:

http://www.victoriaweather.ca/station.php?

 

Annual Christmas Bird Count

Wind: Yesterday 5-10 knots W; Today 5-20 knots NE
Sea State: up to 1 m chop
Visibility: 10 NM
Sky: overcast with rain this afternoon
Temperature: 7 C
Atmospheric CO2: 412.60 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

December 28 is the annual Christmas Bird Count, which happens in thousands of locations across North America. It has been happening for twenty-two years at Race Rocks. This morning with the northeast wind and dropping pressure, the planned visit by the local bird enthusiasts was called off. But fear not, citizen science provailed. For an hour and half this morning, I searched for birds of all feathers as I walked around the island and looked out from the top of the lighthouse. I used binoculars, a spotting scope and the zoom lens on the camera to check out the shoreline, water and the rocky islets of the ecological reserve. I was able to spot 12 species of birds, some of which were not present when I did the weekly census two days ago. Here are the results and photos of the bird count:

25 bald eagles (5 juvenile, 20 adults)
1 fox sparrow
4 canada geese
2 ravens
6 harlequin ducks
208 double-crested cormorants
59 pelagic cormorants
281 thayer’s gulls (on the rocks and in the water)
48 mew gulls (near Turbine Rock and North Rocks)
18 surfbirds
42 black turnstones
4 black oystercatchers

Photos of some of the birds seen today:

In the past two days, I have seen two entangled sea lions. Yesterday morning, I noticed a large steller sea lion with a small rope around its neck. The rope appeared to be cutting into the underside of the animal’s neck. A short while later, I noticed a california sea lion with a cut on its neck from what appears to be a plastic strap wrapped around it. The Marine Mammal Rescue Centre and Department of Fisheries and Oceans have been notified. If the sea lions remain at Race Rocks, it might be possible for a rescue to occur. Both animals were seen again today. See the entangled sea lion and marine mammal rescue tags for past occurrences that were written about in the Log. Two other california sea lions were seen that appear to have healing wounds from something that was previously wrapped around their necks. The animals don’t appear to have tags on their flippers to signify they have been rescued.

The Canadian flag was looking a bit tattered, so I replaced it today.

Just before sunset today, there were four eco tour boats in the reserve. The boats were all close to each other, which usually means something interesting is nearby. Sure enough, a pod of five or six orcas were passing westward. They travelled along the north side of the ecological reserve, just south of Bentinck Island and the Department of National Defence base.

Here are some photos from the past two days:

Clear Skies and Many Birds

Weather: 

  • Sky clear and sunny- no fog!
  • Wind: 10-20 knots SW
  • Water: Rippled. Strong currents today (+4.4 knots)
  • Visibility: 10 miles

Visitors/Boats:

  • Greg came by today with some water that we pumped into the main tank. We are told that the new desalinator should be on its way soon, but is going to take a few weeks to ship.
  • A few whale watching boats today (10-15). Many came close (-50m) to the elephant seals in the jetty and the sea lions on middle rock. We often see them within 10m of the sea otter and kelp patch that it calls home.

Maintenance: 

  • A few days ago we replaced the worn Canadian flag on the flagpole. Today we noticed that the entire rope/pulley system had somehow blown loose and fallen to the ground. The pole is to high for us to reach the top with our ladder, so when it is less windy we will have to take the pole down to make repairs (this will be difficult with so many seagulls about).

Ecological: 

  • Many interesting birds in the reserve this week. Today we spotted some western sandpipers, a couple short billed dowitchers, and a ruddy turnstone all from our kitchen window!
  • Every day we see more and more sea lions. Greg said that he even spotted a stellar sea lion on his way today.

Sea Lion Thermoregulation

The barometer rose steadily throughout the day as a moderate westerly breeze whipped across the reserve. The clouds parted mid morning to bring an afternoon of sun and a high of 13.1 oC.

The solar panels weren’t the only things soaking up the sun’s rays. Sea lions were floating in small groups with one or all four flippers exposed to the air, using thermoregulation to their advantage. The sun warms the seal’s flippers, which are poorly insulated, then the warmed blood is pumped throughout their body.

One whale watching boat was seen in the reserve, after they spotted humpback whales surfacing a few kilometres to the east of the Race Rocks.

Courtney visited on the Second Nature to give a quick lesson on some of the mechanical systems on the island.

Maintenance tasks were performed today: running the generator, cleaning the solar panels, tracking down equipment and parts, figuring out how to use the equipment, vacuuming, flag care, and sweeping the paths.

Sea lions thermoregulating by sticking a fin out of the water.

Sea lions sticking flippers out of the water for thermoregulation.