Tag Archives: glaucous-winged-gull

Aug 2 – Census surprises

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One of the reasons for doing a weekly census is to put down in writing the numbers of mammals and birds that are actually in the reserve. This gives us the opportunity to compare the results, not simply rely on memory. And that’s a good thing!  My impression on my return to Race Rocks is that there were a lot fewer gulls here than last year.  A check of a census at a similar date in 2022 shows that not to be true. The numbers are actually very similar, but down about 15% from the same period in 2021. Census records the high counts of each species observed during the day. The marine mammals, for instance are best counted at low tide when most are hauled out. The adult gulls are at their highest numbers first thing in the morning and shorebirds gather on the east beach in late afternoon. Gull chicks can be counted anytime, but are usually undercounted because of their great hiding skills. In between, the census person watches for any other birds and animals that might show themselves.

Gull chick hidden in the marigolds.

Today’s census had several surprises apart from the number of gulls. While on the jetty, I thought I caught the flash of a bird in the corner of my eye.  It was more than one. At least 3 swallows were feeding on insects in the small bay beside the jetty. I managed to get some bad photos, but good enough to identify two different Barn Swallows and one Violet-green Swallow. Later in the day, a Lesser Yellowlegs was resting with the other shorebirds, and a Parasitic Jaeger (also identified by bad photos) headed west not far off Great Race. An adult and juvenile Glaucous-winged Gull were out for a little swim.  It always amazes me to see these youngsters in the water!

Lesser Yellowlegs, possibly the first documented for Race Rocks.  First on eBird for the Race Rocks hotspot.

Out for a swim

Among the sea lions today, I found one entangled with a fishing lure. This poor animal has been her for several weeks. Another had been branded for a research study. I’ll report this number to get its history.

tagged 746R

Sea lion entangled with sports fishing tackle.

More photos below!

Census, 2 August 2023

Birds

  • Harlequin Duck                              1
  • Black Oystercatcher                       23
  • Ruddy Turnstone                            1
  • Black Turnstone                              93
  • Surfbird                                           24
  • Western Sandpiper                         2
  • Short-billed Dowitcher                     2
  • Lesser Yellowlegs                           1
  • Parasitic Jaeger                              1
  • Pigeon Guillemot                            83
  • Heermann’s Gull                             2
  • Western Gull                                   1
  • California Gull                                 120
  • Glaucous winged Gulls                 332 adults, 237 juvenile
  • “Olympic” Gull                                3 adults 3 juvenile
  • Brandt’s Cormorant                        7
  • Pelagic Cormorant                         2
  • Violet-green Swallow                     1
  • Barn Swallow                                 2
  • Brown-headed Cowbird                 2

Mammals

  • Harbour seal                                195
  • Northern (Steller’s) sea lion         79
  • California sea lion                        7
  • Sea otter                                      1

Visitors:

  • No visitors
  • Ecotourism traffic has been slow.  Several boats a day, but rarely more than one in the area at a time

Facility Work: 

  • Cleaned windows and solar panels
  • Replaced batteries in smoke, CO alarm in Student House

More photos:

** All wildlife photos taken at safe distances with high-powered zoom, and may be cropped to improve detail! **

What a difference a couple of months makes!

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Just two months ago, my arrival was met with uncountable numbers of flies and hundreds of Glaucous-winged Gulls building and tending to their nests, many with eggs. While there are still a few nests, most of the gulls are now divided into territories with adults and associated young.   It seems to me that there are fewer pairs here now than there were in June, and considerably fewer than there were a year ago at this time.  The census on Wednesday should tell an interesting story.

Overall, my impression is fewer gulls, fewer guillemots, fewer mammals (no elephant seals) and many, many fewer flies than the last two Augusts.  Fewer gulls means bigger territories, less bickering and fewer mortalities.  I have been here two full days and have only seen one dead young gull.  This contrasts sharply from the last two summers when there were many remains in the colony — a perfectly normal state of affairs. Perhaps lower productivity has meant an increase in chick survival this year.

Young Glaucous-winged Gulls enjoying some sunshine

The Western Gull I mentioned in an earlier post has produced three young. The adult pair consists of the Western and an “Olympic” gull. Olympic Gulls are a blend of Western and Glaucous-winged Gulls.  I believe the Western of this pair is the female, but since both parents provide egg incubation and chick care, I am not certain.

Western Gull keeping an eye on the three chicks.

One of the Western Gull’s chicks. This one will be an “Olympic” Gull due to its mixed heritage.

The Barn Swallows that arrived on Race Rocks this spring definitely built a nest.  With them gone now, I crept into the space where they had been going and located it.  It’s a wonderful nest, but there are considerably fewer droppings beneath it than I expected.  I think that it may have failed.  It should be left in place, though, as swallows usually return to their nests and get a head start in subsequent years. A single nest can take 600 mouthfuls of mud to create.  That’s a lot of work for small birds.

This nice nest looks a little too pristine to have been used.

Passerine numbers are small as usual.  The only songbird species I have seen so far this week is Brown-headed Cowbird, with up to five gathering in a small flock. The fact that they find each other still amazes me.  How do they know they are cowbirds?  As a brood parasite, all Brown-headed Cowbirds are raised by other species.

Brown-headed Cowbirds

Perhaps the biggest news of the week happened before I arrived.  Derek Sterling, a Race Rocks ecoguardian spending his summer guiding on Eagle Wing boats which frequently come out to Race Rocks called last weekend with the news that there was a mother sea otter with a pup just off the islands. This is fantastic, possibly a first for the area in more than 100 years! I haven’t managed to see them, but Ollie is perched in his usual spot in the kelp.

The shorebird beach in the East Bay is active in the late afternoons, with many Black Turnstones and Surfbirds, the resident Oystercatchers and a few special guests.  Since my arrival, I have seen up to four Short-billed Dowitchers, one Ruddy Turnstone, one Western Sandpiper, and one non-shorebird, a Harlequin Duck, hunkered down out of the wind there.

Four species of shorebirds: Black Turnstone, Surfbird, Western Sandpiper, and Short-billed Dowitcher

Western Sandpiper

Ruddy Turnstone

Short-billed Dowitcher

Harlequin Duck

And speaking of the wind—could someone please turn it down? Although the mornings have started out with moderate winds, by early afternoon they have increased to the level of unpleasantness, and by evenings, I feel like I am getting a taste of what winter must be like out here!

I’m here earlier in August than I have been the last couple of years, so things are understandably a little different.  Wednesday’s census should tell a more complete story.

Maintenance:

Daily maintenance includes washing all the solar panels and the windows that have taken the brunt of gulls flying by. With the winds this week, this is a considerable task!

Weather – Current:

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

 

Weather – Past:

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

July 22 and 23 – End of Shift

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Weather for July 22:
Wind: W 11 to 34 knots
Visibility: <1-15 NM
Sky: Foggy in morning, Partly Cloudy after 09:00
Sea: rippled in morning, up to 2′ chop in afternoon
Air temperature: 12-18 C

Weather for July 23:
Wind: W 12 to 32 knots
Visibility: <1-15 NM
Sky: Fog patches in the morning, Partly Cloudy after noon
Sea: up to 1′ chop in morning, up to 3′ chop in afternoon
Air temperature: 12-16 C

Maintenance:
I did the routine tasks of cleaning the solar panels and house windows, topping up the water in the 24 deep cycle batteries, fixing the electric fence, sampling the salinity and temperature of the seawater, and running the desalinator with solar power to produce freshwater.

End of Shift:
I have enjoyed reacquainting myself with Race Rocks over the past two and a half weeks. The solar power was a sufficient source of energy each day to charge the batteries, power the island, and produce freshwater from the desalinator. I got out in the station boat, which is always a highlight to see the island from the perspective of a sea lion. Most importantly, for the second summer in a row I learned to live harmoniously with the very territorial nesting gulls.

This is my sixth shift I have done as Ecoguardian over the past nine years, for a total of almost nine months. My shifts have ranged from two weeks to four months. I have visited here in ten months of the year, with the exception of June and September.

Tomorrow I am heading home to Vancouver to get ready for two weeks in the Northwest Territories, where I will be canoeing in Nahanni National Park Reserve.

I look forward to returning to Race Rocks sometime soon to explore the familiar sights, sounds, and smells of this amazing place.

Photo highlights from the past two days:

July 17-21 and Weekly Census

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Weather for July 17:
Wind: W 14 to 34 knots
Visibility: <1-15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 3′ chop in afternoon
Air temperature: 13-17 C

Weather for July 18:
Wind: W 9 to 25 knots
Visibility: 15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 2′ chop in afternoon
Air temperature: 11-14 C

Weather for July 19:
Wind: W 6 to 27 knots
Visibility: 15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 1′ chop in afternoon
Air temperature: 12-17 C

Weather for July 20:
Wind: W 21 to 40 knots
Visibility: <1-15 NM
Sky: Foggy in early morning, Partly Cloudy after 10:00
Sea: rippled in morning, up to 4′ chop in afternoon
Air temperature: 12-20 C

Weather for July 21:
Wind: W 19 to 40 knots
Visibility: 5-15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 3′ chop in afternoon
Air temperature: 12-14 C

Maintenance:
I did the routine tasks of cleaning the solar panels and house windows, topping up the water in the 24 deep cycle batteries, fixing the electric fence, tidying, testing the salinity and temperature of the seawater, maintaining the freshwater system, and running the desalinator with solar power to produce fresh water.

Visitors:
I drove the Race Rocks station boat to pick up a friend, who came for the night of July 18. Brad had visited Race Rocks before when we both worked for many summers on campus as coordinators for PSYL (Pearson Seminar on Youth Leadership).

Weekly Census observed on July 20:
Steller sea lion: 14
California sea lion: 1
harbour seal: 124
cormorant: 5
black oystercatcher: 24 adults, 2 chicks
pigeon guillemot: 162
glaucous-winged gull: 396 adults, 147 chicks
surfbird: 30
black turnstones: 87
western sandpiper: 4

Photo highlights from the past five days:

 

July 11, 12, 13, and Weekly Census

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Weather for July 11:
Wind: W 11 to 27 knots
Visibility: 15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 2′ chop in afternoon
Air temperature: 12-14 C

Weather for July 12:
Wind: W 18 to 35 knots
Visibility: 10 to 15 NM
Sky: Cloudy in morning, partly cloudy in afternoon
Sea: 1’ chop in morning, up to 4′ chop in afternoon
Air temperature: 11-15 C

Weather for July 13:
Wind: W 16 to 33 knots
Visibility: 15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 2′ chop in afternoon
Air temperature: 11-15 C

DND Blasting:
There was one DND blast at 14:05 on July 12 at nearby Rocky Point.

Visitors:
Greg and Bruce visited this afternoon to deliver 1,400 L of freshwater and a new first aid kit.

Maintenance:
I did the routine tasks of cleaning the solar panels and house windows, topping up the water in the 24 deep cycle batteries, fixing the electric fence, tidying, and maintaining the freshwater system.

Ecological notes:
There have been a lot of humpback whale activity over the past few days to the west, south, and east of Race Rocks. The whale watching boats have been active in the area. From what I hear on the VHF radio, they have been very pleased with the humpback viewing. I have not seen any whales swim through the ecological reserve.

I heard back about the tagged elephant seal, from the researcher at Año Nuevo Natural Reserve, in California. The juvenile seal, tagged H999 and K646, is a male who was born in January 2022. He was previously observed here and reported to the researchers on April 1, 2023. He has been moulting here for at least the past several weeks. He appears to be almost complete the moulting process, so he might be moving on soon to feed in the deep waters.

Weekly Census observed on July 13:
elephant seal: 1 juvenile (tagged H999, K646)
Steller sea lion: 3
harbour seal: 79
bald eagle: 2 adults, 1 juvenile
raven: 1
cormorant: 7
black oystercatcher: 6 adults, 1 chick (that I could spot today)
pigeon guillemot: 148
glaucous-winged gull: 387 adults, 120 chicks
surfbird: 12
killdeer: 4
western sandpiper: 3
barn swallow: 3

Photo highlights from the past three days:

July 9 and 10

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Weather for July 9:
Wind: W 20-41 knots
Visibility: 15 NM
Sky: Clear
Sea: 1’ chop in morning, up to 3′ chop in afternoon
Air temperature: 10-14 C

Weather for July 10:
Wind: W 14 and 36 knots
Visibility: 15 NM
Sky: Partly Cloudy
Sea: 1’ chop in morning, up to 3′ chop in evening
Air temperature: 11-15 C

The sea lions seem to be making a return. Four male Steller sea lions were gathered on Middle Rock today. One California sea lion was on the end of the jetty this morning.

Here are some photos from the past two days:

Back on the Rocks!

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I am back on Race Rocks for the next two weeks, having been away since August. Greg drove me out yesterday afternoon in the boat Second Nature, arriving at 15:30. After unloading my gear and food, I reacquainted myself with the island’s building, systems, and other species.

There are two elephant seals on the island. One sub adult hauled out on the boat ramp has two green hind flipper tags labelled H999 and K646. They mentioned by Derek on the April 1, 2023 census: https://racerocks.ca/animal-census-31/. Green tags usually signify the seal was tagged as a pup at Ano Nuevo Reserve, near Santa Cruz, California. I have put in a request with the researchers there to find out about the sighting history of the seal. The other seal here right now is a female adult, who has been hauled out near the bushes on the centre of the island and made some trips to the water, was probably one of the mothers from the winter breeding season.

The most populous birds right now are the few hundred nesting glaucous-winged gulls and chicks. There are still many nests with eggs yet to hatch. The pigeon guillemots are active in a few places around the island: near the jetty, blasted rocks north and west of the helicopter pad, and the south side of the island. I have yet to see any oystercatcher chicks or the barn swallows that have been seen recently.

Weather for July 7 afternoon and evening:
Wind: W 32 knots
Visibility: 15 NM
Sky: Clear
Sea: 3′ chop
Air temperature: 14 C

Weather for July 8:
Wind: W between 10 and 31 knots
Visibility: 10-15 NM
Sky: Partly Cloudy
Sea: rippled in morning, up to 3′ chop in afternoon
Air temperature: 12-15 C

I gave the solar panels a good scrub this morning to get off the built up gull guano. I have also been monitoring the freshwater levels after a couple recent leaks that have been fixed.

Here are some photos from the past two days:

Foggy day for an Animal Census

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The first foggy day in a couple weeks today!

With 6 new solar panels installed along with replacements to wiring that had corroded with the salty air this week, it seems the fog is barely affected our power supply which is amazing!

A couple DND blasts at Noon through the fog made even fewer animals around the reserve today.

 

Birds

  • Harlequin duck                                  5
  • Bald eagle adult                                2 
  • Glaucous winged Gulls                  527   
  • Cormorants                                      31
  • Pigeon Guillemots                             176
  • Oyster catcher                                    10
    • Oyster catcher eggs                   7   (3 in two nests and 1 in a third)
  • Savannah Sparrow                              1
  • Canada Goose                                     14
  • Barn Swallow                                       1
  • Crow                                                     3

Mammals

  • Steller sea lion                             10
  • Harbour seal                                 63
  • California sea lion                        17
  • Elephant seal sub adult male      2
  • Elephant seal adult female          2
  • Elephant seal pups                      3

 

Visitors:

  • Race Rocks Challenge participants
  • 3 contractors installing and maintaining solar panels
  • 44 Marine Science students visited to write their exam
  • 4 Pearson College Second year students came for a visit before the school year ends.

Facility Work: 

  • Fixed Compost
  • Taped off Oyster Catcher nests and made map 
  • Cleaned house
  • Filled water in batteries
  • Emptied and cleaned composting toilet
  • Cleaned windows and solar panels
  • Mopped basement
  • Organized and cleaned tool drawers
  • Fixed and rebuilt sections of Electric fence
  • Cleaned lighthouse

 

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

 

Weather – Current:

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

 

Weather – Past:

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

Animal Census with a couple quick Terns

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Birds

  • Harlequin duck                                  5
  • Bald eagle adult                                2 
  • Bald eagle juvenile                           1
  • Ruddy Turnstone                              1
  • Glaucous winged Gulls                     685 
  • Cormorants                                        72
  • Pigeon Guillemots                             327
  • Oyster catcher                                    10
  • Savannah Sparrow                              6
  • Canada Goose                                     14
  • Raven                                                   2
  • Caspian Tern                                       2
  • Barn Swallow                                       2

Mammals

  • Steller sea lion                             16
  • Harbour seal                                 79
  • California sea lion                        32
  • Elephant seal sub adult male      2
  • Elephant seal adult female          3
  • Elephant seal pups                      3

Visitors:

  • Mollie – future Ecoguardian 

Facility Work: 

  • Chopped and stacked remaining fire wood
  • Deep Cleaning of Kitchen and sorting through house hold items
  • 3 coats Stained Kitchen table
  • Sharpened Axe
  • Mounted 2 large Elephant Seal winter coat sheds for future visitors and students to touch and see. 
  • Set up Hose system from Science house up to solar panels so we no longer have to haul a 5 gallon bucket up a ladder
  • Cleaned solar panels
  • Addled Canada Goose Eggs and mapped out nests
  • Cleaned windows

 

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

 

Weather – Current:

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

 

Weather – Past:

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