Tag Archives: cormorant

Plastic No No Band

Posted on by

Thanksgiving Monday was a wet day dominated by light north-northeast winds in the morning and a moderate westerly in the afternoon. Wind speed was 10 or less knots until it turned to west. By early evening it had risen to 15 – 20 knots. The barometer fell early and has been climbing since late morning boding better weather tomorrow. The wind is forecast to drop after midnight and switch to light easterlies for Tuesday. Forecasters expect a mix of sun and cloud with fog patches dissipating in the morning. A brighter day expected.

Seven whale watching vessels visited in the morning and none in the afternoon and the three pleasure craft that passed through were also in the morning.

On wet days, it seems as if the sea lions spend more time in the water although there are pockets of Californians (on the cairns, for example) that stayed put, hauled out all day. The rock-climbers also stayed where they were (up by the heli-pad), some for a couple of days. I did see one “new” (to me) brand today, California Sea Lion ‘U755’ from the Columbia River area. There was also a “necklaced Stellers Sea Lion on the rocks by the energy building today. That rock is quite popular with Stellers which surprising due to its proximity to the activity.

Six young Northern Elephant Seals were ‘hanging out’, tussling in the water by the jetty all day today.

Salmon continue to pass through, as observed in sea lion kills throughout the area. The Glaucous-winged Gulls and Thayers Gulls continue to scavenge at the surface during the kills and in the mixed species feeding flocks where diving birds force forage fish balls up to the surface. Humpback Whales continue to forage adjacent to the protected area. The Humpback out by Rosedale Reef today is an extremely large one (probably a female). It spends very little time at the surface with dive times averaging greater than 10 minutes

California Sea Lion with brand U755. The U is also a C and indicates the animal was branded as a weaner near the Columbia River.

California Sea Lion with brand U755. The U is also a C and indicates the animal was branded as a weaner near the Columbia River.

and sometimes only one or two blows. They are tremendously high, straight blows.

More and more Double Crested Cormorants arrive daily raising the total number of cormorants using the protected area to forage and roost. The adult Bald Eagle returns each morning and worries the gulls and cormorants.
Chores are routine and it is really great to have company.

Twofold Foggy: Friday – Saturday

Posted on by

Friday started with fog again and light southeast winds, from 5 to 10 knots. By late morning there were glimmers of clearing and by mid-day the sun was shining. The wind stayed calm and it stayed fairly clear, with clouds rolling by as the wind turned to west, in the late afternoon. By evening it was still and the sky mostly clear but that must have changed as the was fresh rainwater in the morning. The barometer bottomed out Friday morning at 1007 hPA before rising briefly. It started to drop again mid-day falling until mid-Saturday. The gale warning for Saturday, came true after another very foggy morning and light easterly winds. The turn to westerly was rapid, the fog was blown off and ominous clouds with a black line on the water to the west, foretold of what was to come. It blew up fast, reaching 40 knots and then settled back down to the up and down of 20 – 35 knots. There is gale warning is still in effect and the wind is forecast to lighten overnight, then become easterly 5 to 15 near noon Sunday. (I am collecting rainwater for laundry, bonus.)

Only two whale watching vessels were observed in the protected area Friday. Two sports fishing vessels also passed through. Saturday was a little busier with five whale watching vessels noted in reserve but there were no pleasure craft, they were probably seeking shelter. It is quite possible that I missed traffic both days due to thick fog reducing visibility.

Thursday was too foggy to do the animal census so it is cobbled together from the brief time slots when visibility permitted on Friday. It is interesting to note that the gull population plummeted after the arrival of the first Bald Eagle to be seen here, since I arrived at the end of August. Not sure if that is coincidental or not.

I only noticed the eagle because of the hundreds and hundreds of gulls moving en masse, from North Rock over to Great Race. When I peeked through the spotting scope, all the cormorants were in the water, the gulls were gone and there sat an adult Bald Eagle. Only the Harbour Seals seemed to ignore its presence.

There was no sign of the eagle today and the gull numbers are perhaps even lower. Glaucous-winged juveniles and adults continue to mill around summer territories. Some young ones are still practising picking things up, flying up and dropping them. Most of the adults are fully into their alternate plumage now. Their faces recovering from the physical aspects of feeding young.

The sea lions are spending more time in the water now that their favourite haul-out spots are worse than pig pens. Some of them have turned to rock climbing and I saw the first scouts up on the heli-pad today.

Animal Census

Steller Sea Lion 317

California Sea Lion 428

Harbour Seal             156

Northern Elephant Seal 6

Sea Otter 1

Southern Resident Killer Whale ( observed within one mile of ER during count week, (Race Passage, east, west and south of RR)

Biggs Killer Whale (Transients) ( during count week Race Passage & southwest)

Humpback Whale 2 (1 observed within ER west side during count week)

Minke Whale 1 ( observed within one mile of ER during count week just east of North Rock)

Canada Goose 4

Harlequin Duck 7

Surf Scoters 73 (flying through to east)

Double-crested Cormorant 35

Brandt’s Cormorants 29

Pelagic Cormorant 9

Bald Eagle 1 adult

Black Oystercatcher 23

Black Turnstone 6

Kildeer 2

Glaucous-winged Gull 258

California Gull 41

Thayer’s Gulls 874

Herring Gull 0

Ring-billed Gull 0

Western Gull 2

Heerman’s Gull 20

Mew Gull 18

Unidentified gulls 361

Total gull count 1574

Common Raven 2

Savannah Sparrow 19

Fox Sparrow 1

Junco 1

Golden-crown Kinglet 1

American Pipet 1

 

Starting the countdown on my last week on the rock for this shift. I may be back for a bit at the end of October, if extra training is needed for the new folks.

Noticeably Darker Day

Posted on by

Today was more of a fall day with cooler temperatures and a threat of rain in the air. Light levels were way down too. The barometer rose to 1014 hPA from a low of 1010 yesterday and it has just started to fall again. Rain and east winds of up to 25 knots are predicted to bring tomorrow’s forecasted rain, with a cool, wet outlook for the week ahead.

Thirteen visits to the protected area, by whale watching vessels, were observed today. Only one pleasure craft was noted.

There was a lot of cetacean action in and around Race Rocks for most of the day. It started with two big, bull, Biggs Killer Whales (Transients), travelling in from the west on the Rosedale side. They were later spotted in Race Passage and not long after an adult female Killer Whale was seen well inside the reserve by Turbine Rock. There were two Humpback Whales, one feeding just east of Race Rocks that moved west through Race Passage. It had a definite white splotch on the right fluke. The other one was feeding just west and had dark flukes, the same one, I think, that has been around for a while. There was also a Minke Whale feeding just to the south of Race Rocks.

Accumulated solar radiation levels today were less than half of what they have been for the last few days, 150 versus 300 to 350 Langleys and the days are getting noticeably shorter, faster now. Migrant species are moving through the reserve daily with hundreds of Surf Scoters moving through from west to east every day. All three species of cormorants are using the rocks here as roosts now and feeding in the multi-species flocks that surround the reserve with much commotion. This change into autumn not only impacts the biodiversity of the reserve but also has an impact on practical things like power generation.

Solar power has been producing over 90% of the power needed to run everything on the island and that amount will change over the next few months. Right now the shortfall is made up with a diesel generator but the plan is to move to cleaner burning propane in the near future. A great deal of progress has been made in reducing the amount of fuel stored and used here, from the days of the Coast Guard when there were six giant diesel tanks dominated the rock and the generators ran 24/7. A big shout goes out to Pearson College, for both reducing the ecological footprint in terms of CO2 and for reducing the risk of a spill.

Gathering of the Gulls

Posted on by

Today started fairly clear, then clouded over. In the afternoon it was sunny for a few hours and eventually the sky darkened and at dusk the rain started. The barometer rose to almost 1019 hPA mid-day and then fell. The forecast is for clearing and light east winds with sunshine on the horizon.

Twelve commercial whale-watching vessels were observed working in the Ecological Reserve. They were in the area watching a Humpback feeding very close to the western reserve boundary, transient orcas to the southwest and southern resident killer whales to the northeast.

Today was census day due to thick fog yesterday.

Animal Census

Steller Sea Lion 338

California Sea Lion 908

Harbour Seal             178

Northern Elephant Seal 5

Sea Otter 1

Southern Resident Killer Whale (26 observed within one mile of ER during count week, (Race Passage, east, west and south of RR)

Biggs Killer Whale (Transients) (9 during count week Race Passage & southwest)

Humpback Whale (3 observed within one mile of ER during count week)

Minke Whale (1 observed within one mile of ER during count week just east of North Rock)

Canada Goose 20 attempting to be full time

Harlequin Duck 5

Surf Scoters 30 (flying through to east)

Double-crested Cormorant 12

Brandt’s Cormorants 27

Pelagic Cormorant 5

Black Oystercatcher 5

Black Turnstone 7

Surfbirds 13

Kildeer 2

Total gull count 2469

Estimated numbers

Glaucous-winged Gull 350

California Gull 50

Thayer’s Gulls 1500

Herring Gull 1

Ring-billed Gull 1

Western Gull 1

Heerman’s Gull 15

Mew Gull 20

~531 unidentified gulls

Common Raven 2

Savannah Sparrow 10

Fox Sparrow 2

Song Sparrow 2

Junco 3

Pacific Wren 1

 

Other chores were routine. There were no visitors.

 

Troglodytes Return to the Rock

Posted on by

The mostly overcast sky of early morning gave way to sunshine and clear skies for a beautiful transition day from summer to fall. The wind didn’t do much all day. The barometer rose to over 1016 hPa continuing yesterday’s rise but has now faltered and is starting to drop again. Forecasters are calling for winds to continue from the west tomorrow and then switch to east with increasing cloudiness, showers and dropping temperatures as the week progresses.

There were Humpback Whales just south and then east of Race Rocks most of the day. Some of the whale watching fleet visited them and the Ecological Reserve. A total of 15 visits were observed by commercial operators today and there may have been more mid-day when I went ashore briefly. By evening, there were four Humpbacks in the same area.

Ecologically, a change of season continues to be in the air. Flocks of Surf Scoters are passing through Race Rocks heading east. Cormorants are amassing in roosting areas on North Rocks, South Islands and Great Race and all three species are using the reserve to roost. More gulls arrive daily and huge multi-species feeding flocks are forming in conjunction with forage fish being driven up by diving birds like cormorants, Rhinoceros Auklets and Common Murres. These two species of alcids are often diving just outside Race Rocks but this morning on slack tide I saw a string of Common Murres in reserve, on the water. The adult males still have chicks with them.

There are also multi-species gull feeding flocks associated with sea lions’ salmon kills as observed earlier in the season. This morning I watched a California Sea Lion thrash what looked like a coho at the surface and then swallow it, head first, using a little air-born, porpoise-like action to get the tail down the gullet.

The bull kelp seems to still be growing and the beds are much more extensive than I remember them being this time last year. There is always lots of inter-annual variability in kelp cover as many factors affect its productivity and biomass including seawater temperature and salinity, light levels, nutrients like nitrogen, storm action and of course grazing. In the reserve, sea urchins and abalone are important grazers of kelp and they are also on the top of the menu when it comes to favorite food items for Sea Otters.

On land, Dark Eyed Juncos are flitting about with Fox Sparrows and Savannah Sparrows. There is a also a visitor back, that I haven’t seen here since last year. A small, but powerful presence in the form of one of my favourite little birds, a Pacific Wren has taken up cave-like residence in the old stone wall under the tower and can be seen going from cave to cave in the wall.

Other than the constantly changing and incredible natural scene outside, work was routine and there were no visitors today.

 

Elephant Seals Hang On.

Posted on by

The overcast morning sky cleared by noon, clouds pushed out by light northeast winds. In the afternoon, the wind turned to west and then in the evening to southwest. The barometer rose to 1013 hPA today. The forecast continues to call for rain along with variable winds at 5 – 15 knots.

There were only six whale watching visits observed in the Ecological Reserve today and no sports fishers. The large military explosions punctuating yesterday’s alternate sea lion swims and haul-outs continued today.

Today was census day at Race Rocks.

Steller Sea Lion 313

California Sea Lion 649

Harbour Seal 155

Northern Elephant Seal 14 (Two on Great Race -#5850 + female; 12 on Middle Rock)

Sea Otter 2

Southern Resident Killer Whale 16 (during count week)

Humpback Whale 3 (during count week)

Canada Goose 4 full time (2 adults 2 goslings) (flock of 25 chased off twice)

Harlequin Duck 1

Double-crested Cormorant 83

Pelagic Cormorant    9

Cormorants spp 18

Black Oystercatcher  6

Black Turnstone 12

Kildeer 2

Mew Gull 134

California Gull 11

Herring Gull

Glaucous-winged Gull total ( 277- adults; 74 – juveniles)

Ring-billed Gull 1

Gull spp 62

Song Sparrow 1

Savannah Sparrow 22

Fox Sparrow 1

Junco 3

Barn Swallows 2

American Pipet 1

A crew from operations at Pearson College, visited today and were very helpful in getting freshwater flowing again in the Eco-guardian’s House, amongst other things. Courtney was at the helm of Second Nature, Jeff brought all the plumbing gear and know-how to replace the pump and Jasper (PC Alumnus year 20) a curious, environmental engineer figured out a few of diesel pumping mysteries. A big shout out to all three. Thanks for the support.

 

End of Summer?

Posted on by

The day started with partially overcast skies and a south wind of 5 – 10 knots. Late morning, the wind picked up from the northeast and brought fog. There was a bit of sunshine mid afternoon and then clouds gradually filled. By evening the wind was from the west 5 knots. Barometric pressure ended up a little higher than yesterday, but not by much and it was dropping again as evening progressed. The forecast is calling for showers and light to variable east to northeast winds.

There were was whale watching activity to the south today and 12 whale watching vessel visits were observed in the Ecological Reserve. They were mostly well behaved but a couple operators need to mind their speed in reserve and everyone gets very close to the sea otters, although the sea otters do not seem disturbed. Three sports fishing vessels were noted in reserve. They all slowed and proceeded carefully, using Middle Channel.

As the weather changes and summer draws to a close, more migratory birds are noted at Race Rocks. Some are just passing through on their way south, maybe some of the same ones I saw going in the other direction last spring such as Barn Swallows, Fox Sparrow and American Pipets. Other birds are arriving back from their breeding grounds to spend the fall winter and spring, like the Harlequin Ducks. Harlequin Ducks were seen this morning around Turbine Rock. Others are at the northern end of their post-breeding migration like the Heerman’s Gulls and California Gulls and will head south again before long. Pelagic Cormorants are spotted roosting near Camera 5 daily. This is a species that used to nest here and it would be nice to see them nesting here again.

On the Pinniped front there were nine Northern Elephant Seals holding their ground on the top of Middle Rock today. As I know from personal experience they are good at that.

Chores were routine today and there were no visitors.

Census Time Again

Posted on by

The fog rolled in last night after dark and it was gone but not far away by mid-morning. Very light winds of 5 to 10 knots came from the south, southeast, southwest and west finally settling into a west southwest pattern.

The barometer spiked mid-day at 1018 hPA and then settled to 1016. The forecast is for light a variable winds, patches of fog dissipating late morning Friday in sunshine.

Only four whale watching boats were observed visiting the Ecological Reserve today. Two of the vessels were zodiacs and two were larger vessels packed with passengers. The same vessel that has been observed and photographed speeding in reserve before, was at it again today as well as almost sitting on top of the sea otter so the clients would get a good view. The owners and insurers of that vessel might be concerned if they knew about this operator’s risky manner. Three sports fishing vessels were also spotted and recorded, speeding through the go-slow zone. There are hundreds of animals in the water inside the reserve right now and reckless vessel operation puts them at risk as well as the people in the boats.

There were explosions at Rocky Point today with minimal impact on animal behaviour here.

Today was census day and here are the results.

Steller Sea Lion 313

California Sea Lion 726

Harbour Seal 157

Northern Elephant Seal 6

Sea Otter 1

River Otter at least one (assumed, not seen but evidence of it seen)

Southern Resident Killer Whale ~15 (Part of L-pod – during count week)

Humpback Whale 3 (during count week)

Canada Goose 4 full time (2 adults 2 goslings) (no other flocks visited)

Harlequin Duck 0

Double-crested Cormorant 7

Pelagic Cormorant 5

Brandt’s Cormorant 0

Black Oystercatcher

Black Turnstone 11

Ruddy Turnstone 0

Western Sandpiper 5

Kildeer 2

Glaucous-winged Gull 303 total (221- adults; – 82 juveniles)

California Gull 73

Herring Gull 1

Ring-billed Gull 1

Western Gull 0

Heerman’s Gull 7

Peregrine Falcon 1

Common Raven 1

Savannah Sparrow 12

 

A Tale of T-Whales

Posted on by

Today the wind continued its westerly path, bringing fresh ocean air in through the central Strait of Juan de Fuca at 20 to 35 knots. The sky was mostly clear, with clouds forming in the distance, along the tops of the Olympic and Cascade Mountain ranges. The barometer continued the climb it started yesterday until late afternoon, reaching almost 1020 hPa., before starting to gradually drop as the sun descended toward the horizon. Gale warnings continue to be in effect and the forecast calls for a mix of sun and cloud tomorrow.

Five whale watching vessels were observed working in the Ecological Reserve today in spite of adverse weather conditions. They all moved carefully and at a respectful speed being mindful of the marine mammals (Elephant Seal, Harbour Seals, Sea Lions, Sea Otter) and nesting seabirds in the Reserve. The only other vessel observed transiting the Ecological Reserve today was the Fisheries and Oceans vessel, Cape Kuper travelling at a discreet 25 knots towards Victoria, in the go slow zone.

Ecological happenings described in some detail in my earlier logs continue. (Elephant Seals haul out, socialize, sleep and moult. Other pinnipeds haul-out socially. Glaucous-winged Gulls, Pigeon Guillemots and Black Oystercatchers mate, nest, lay, incubate and get territorial. Mixed species feeding flocks (fish balls) attract gulls on the water and kelp is still growing.)

Glaucous-winged Gull incubating three eggs.

Glaucous-winged Gull incubating three eggs.

Of note was the sighting of Biggs’ Killer Whales (Transients) in the evening. I counted six individuals including a large bull with a very triangular fin. The two whale watching boats closer to them reported seven or eight individuals including a young calf. As often happens with T’s, as they used to be known, we spotted them a couple of times and then they totally disappeared. They showed up again, with the whale watching boats “in tow” a mile or so to the east.

Orca Spirit runs upstream through Middle Channel.

Orca Spirit runs upstream through Middle Channel.

Here are the results of the weekly animal census.

Northern Elephant Seals 3 (Chunk, Floyd and young female) only on Great Race, none on Middle Rocks)

Harbour Seals 221

California Sealions 1

Northern or Stellers Sealions 1 (juvenile (Could be the two year old that was still with its mother earlier in the season (that size).)

River Otter (not seen but probably still here, fresh feathers in boat house)

Sea Otter 1

Biggs’ Killer Whales 6 (Transients) (Just north, outside of Ecological Reserve in Middle Channel near North Rock.)

Humpback Whale 1 (“Big Mama”) (Just outside of Ecological Reserve to the south of Rosedale Reef.)

Canada Geese 16 (= 10 goslings + 6 adults) (most have left)

Pelagic Cormorants 3

Double Crested Cormorants 5

Bald Eagles 1 sub-adult (no adults seen)

Black Oystercatchers 8 (4 nesting pairs)

Kildeer 2

Pigeon Guillemots ~100

Glaucous-winged Gulls total 457 (385 adults in nesting areas; 72 roosting/resting on Middle Island including 14 juveniles). Large majority of gulls are incubating now, although some are still getting started. No chicks observed yet

Alex and I came out on Second Nature last night with Chris. Christine and Guy returned to shore the same way. A big shout out to Chris for all his support.

There were no visitors and chores were routine, but more fun with company.

Yellow-headed Blackbird

Posted on by

Again it was a day dominated by the west and west-southwest winds. It was blowing 30 to 35 knots at dawn but the velocity subsided and most of the day it blew 20 to 25 knots. Skies were partially overcast and as predicted there were a few showers. Air temperature remains low, and is not much different than flooding sea surface temperature at ~ 9.7 oC. ranging between 10 oC and 12 oC .The wind is also chilling and today had the highest wind speeds of the week. The barometer rose today from 1008 to 1013 hPa and is dropping now while the forecast calls for gales and a gale warning has been issued. Saturday is supposed to be mainly cloudy with a 30% chance of showers.

There were four whale-watching boats observed, working in the Ecological Reserve today. No other vessels were observed in reserve.

Female Northern Elephant Seal # 5086 is on day seven of her moult now and has made great strides in losing skin during the last 24 hours. She has achieved the two thirds moulted milestone and is still grouchy.

5086_Day 7

Black Oystercatchers are without a doubt nesting now and there are eggs in their terribly spartan nests, which have none of the comforts of home like soft vegetation or down.

Untitled bloy egg2

Some of the goslings are getting quite large and although they may be considered pesty, they are still fascinating to watch.

gosling

The California Sealions are moving back onto Great Race and I awoke to a chorus of them doing a call and response outside my bedroom window this morning.

ZACA

Thanks go out to Don Stewart for spotting and identifying an Anna’s Hummingbird on Great Race today, I believe this is a new addition to the species list here.

DCS

Another thank you to Rocky Point Bird Observatory for identifying a Yellow-headed Blackbird, another possibly new bird to the island. It has been hiding in the long grass and thistles near the base of the Light Tower and it has been difficult to get a photo fast enough. Today it flew to the roof of the Energy Building which made a photo much easier.

Yhblkbrd

Yesterday was census day but it was too foggy much of the day to do a good census. Here are the results from today’s census.

Northern Elephant Seals 26 (18 on Great Race, 8 on Middle Rock)

Harbour Seals 228

California Sealions 14

Northern (Stellers) Sealions 26

Canada Geese 24 (+ 21 goslings)

Harlequin Ducks 6

Pelagic Cormorants 8

Double Crested Cormorants 13

Bald Eagle total 3; 1 adult, 2 sub-adults

Black Oystercatchers          14

Kildeer                                   2

Pigeon Guillemots              230

Glaucous-winged Gulls total 564 (556 adults in nesting areas; 8 sub-adults in                           roosting/resting area)

California Gulls                    6

Common Raven                  1

Northwestern Crow             1

Anna’s Hummingbird         1

Yellow-headed Blackbird   1

Chores were routine today. Courtney came out with the new switch box for Camera 2 and installed it. Camera 2 is working again now but a close-up study on diatom film. Don left on Second Nature.