Category Archives: Class Mammalia

Windy Weekend

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Weather:

  • Visibility 15+ NM
  • Sky clear, a few clouds on the horizon
  • Wind 15-20 knots W
  • Sea state: white caps, chop up to .5 m

Boats/Visitors:

  • 1 pleasure craft  passed through yesterday, and they were very careful not to bother the animals. It’s always heartwarming to see parents sharing an appreciation and respect for wildlife with their children :)

Ecological: 

  • It has been very windy so the animal activity has been minimal. There are two newly arrived adolescent male elephant seals beginning their molt.

Many Seals, Census

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Weather:

  • Visibility 10 + NM
  • Sky partly cloudy
  • Wind 15-20 Knots SE
  • Sea state: calm, rippled

Marine Traffic/Visitors: One pleasure craft drifted through in the early afternoon. They did an amazing job of drifting with the current so the animals would not be disturbed, and were very careful of the kelp and shallow areas. Well done!

Ecological: 

  • The animals have been keeping to themselves and trying to stay out of the elements as yesterday there was quite a bit of rain and wind. When the weather is harsh, the elephant seals typically try to lay behind a rock or outbuilding to avoid the wind. The seagulls point themselves into the wind and sit close to the ground. The sea lions don’t seem to mind at all, but the geese love the rainy days! They like to drink from puddles and clean their feathers in the fresh water.
  • Yesterday we were visited by a flock of pigeon guillemots, who prefer the jetty or rocks immediately surrounding.
  • Comments in photos refer to pineapple weed..check it out here in the Taxonomy File

Census:

  • 7 Elephant Seals
  • 8 Oyster Catchers
  • 32 Sea Lions
  • 101 Harbor Seals
  • 22 Geese (one active nest)
  • 285 Seagulls

 

Blooming Biodiversity

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Weather:

  • Visibility 15+ NM
  • Sky clear
  • Wind 15-20 NE diminishing to 5-10 SE
  • Sea state: calm
  • Temperature 22.5°C

Visitors/Marine Traffic: 

  • A trickle of pleasure crafts outside of the reserve, 4 inside of the reserve
  • Yesterday a very small vessel came to the reserve with 3 people aboard. They approached each outcropping very closely, scaring the animals into the water.
  • This evening a boat with 6 passengers sped through the reserve. They passed the resting sea lions very closely, and sped through the passage where many were swimming and fishing.
  • On Friday Greg visited to work on the generator, and Nick came too
  • There have been large commercial barges steadily passing through the straight. Since the weather has been so calm we can hear them inside the house, even though they are nearly 8 km away.

Ecological:

  • The elephant seals have been taking daily soaks in the shallow water surrounding the jetty in this warm weather.
  • In the shallow and warm waters this week we have been spotting schools of small fish. The larger animals in the water seem to ignore them completely.
  • There have been blooms of jellyfish passing by in the currents, mostly water jellies and the small “sea gooseberries” which seem to glitter in the light due to the the tiny hairs (cilia) that pulsate to move them through the water.
  • A few harlequin ducks spent the evening in the reserve on Friday

Census: 

  • 16 Canada Geese
  • 8 Oyster Catchers
  • 4 Crows
  • 8 Elephant Seals
  • 300 Seagulls
  • 2 Cormorants
  • 2 Bald Eagles
  • 48 Sea Lions
  • 9 Harbour Seals

Unsafe Snorkeling, Fall Changes, Census

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Weather: 

  • Visibility 15+ NE
  • Sky overcast, cloudy
  • Wind 15-25 kn N
  • Water moderate waves, white caps.

Visitors/Boats: 

  • Around 15 whale watching boats yesterday
  • Corey, Guy, and a student with their visiting grandparents visited yesterday, and delivered water- the desalinator is on the horizon!
  • We are ending our term on Race Rocks tomorrow, so Greg and Guy will come for a debrief before the next eco-guardian takes over.

Yesterday we saw a pleasure craft enter the reserve and drop snorkelers into the water less than 100 m from our jetty, within 5 m of shore and the hauled out sea lions. The animals were distressed and swam around the snorkelers barking. The current was flooding very quickly (5 knots), which creates dangerous water currents, eddies, and upwellings. We as well as Corey in Second Nature motioned for the boat to move away, but they simply gathered the snorkelers and moved around the corner where they presumably thought we would not see them. An eco-tourism vessel in the reserve also noticed them and contacted us to let us know, out of concern for their safety given the animals present and the currents at the time.

In the past scuba divers and vessels have found themselves capsized or pulled away from their dive site and rescued by helicopter, and in 2015 a diver went missing and was found deceased days after they disappeared by a fisherman after rescue crews were not able to find them. We were especially concerned for this group’s safety due to lack of float marking their position and the frequent boating traffic through the reserve. In the past, seal pups have been decapitated by vessels passing through too quickly and unable to see them. If these snorkelers had been pulled away by the currents, there would have been a high chance of being struck by a vessel unable to see them in the rough water.

Ecological: 

  • The sea lions population continues to grow! We are having to repair the fences sometimes twice per day. It seems like a more powerful electric fence energizer could be a good idea.
  • We spotted a little Greylag goose among the Canadian geese yesterday.
  • The sea lion that we spotted on Sept. 12th with an apparent propeller wound to his head is still here. He stays near the jetty and seems to have some behavioural anomalies, presumably due to the head injury. He is not afraid of us like the others, and does not move away into the water with the others when we clear the jetty. We haven’t had any problems but are weary that his behaviour could be unpredictable. Marty (the vet that came to aid in rescuing the entangled sea lion) mentioned that sometimes when this happens a shard of their skull can splinter and cause a brain infection. We hope this little guy is on the mend.
  • There have been many Canadian Geese passing through this week; A few days ago we counted over 20. The geese are not native to the island, but according to Gary Fletcher they arrived somewhere in the 80’s as the population of geese on Vancouver Island were introduced/grew. Addling the eggs began somewhere in the late 90’s. Unfortunately, this year two nests survived and hatched goslings, meaning that 20 geese left the island after 8 nested here in the spring.

Census: 

  • 500 Sea lions
  • 15 harbour seals
  • <20 seagulls
  • Approx. 20 cormorants
  • 3 short billed dowitchers
  • 1 Greylag goose
  • 1 sanderling
  • 1 Savannah sparrow
  • 20-23 Canada geese

More Sea Lion Injuries Due to Fishing

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Weather: 

  • Sky partly cloudy, some periods of fog
  • Visibility 1-15 miles intermittently
  • Wind 20-30 knots W – NW
  • Water rough, whitecaps, swells around 1m

Boats/Visitors: 

  • No visitors today, but on Sunday Corey drove us back to Race Rocks with some more water as we were having troubles getting our boat to start.
  • There have not been many whale watching boats but when they are here they often get quite close to the sea lions (within 10m). We can tell when there is a boat present in the reserve by the increase in “barking” and distressed sounds that the sea lions make.

Ecological: 

  • Over the weekend a sea lion was spotted with some fishing line wrapped around its neck. We believe that it could be the same one spotted last year. As it grows it will likely die due to slow suffocation caused by the line. Unfortunately it’s virtually impossible to have someone come to tranquilize and remove the line as the sea lions move on before they can get here. However, if we see it again we will report the injury.
  • Today we found a large fishing hook which must have come loose off of a sea lion. We’ve previously observed sea lions trying to remove fishing hooks from their skin by rubbing against the jetty.
  • There are quite a few sea lions all over the island now. We have been delaying our water sample that we normally take from the jetty to avoid having to chase them off, since when they are startled they climb over each other or rush off of the side of the jetty where the water isn’t very deep. The few that have come near the house don’t seem to be moving around much, just resting and getting away from the crowds.
  • With the return of the sea lions we’ve been getting bitten by little black fleas that we also saw in late spring. They were not a problem while the sea lions were not here, so we’re wondering if the two are connected.
  • Many of the young seagulls have left or are flying very well. A few of the latest hatched are still here, but the mothers are starting to leave them to fend for themselves.
  • We have been spotting the odd young elephant seal hauling out for a few hours before continuing on.
  • We’ve been noticing eagle feathers and dead adult seagulls around the island. Oddly, we haven’t seen the eagles hunting.

Maintenance: 

  • We’ve been needing to do daily fence repairs on the electric fence at the back of the island as the sea lions have been trampling it and breaking the wire and insulators that hold the wire on the posts. Hopefully with some persistence on our part they will learn to leave it alone.
  • Today we also set up the electric fence that runs between our house and the jetty/north island to prevent them from coming up around the infrastructure. They are stinky and destructive if you let them get too close!
  • We are still picking up sharp bits of tin and shingles/tar paper/ misc. litter from around the island. Some of it is from the roofs being redone recently, but a lot of it is older and becoming exposed now that the grasses are dormant for the summer.  Today we filled two buckets in an hour or two of scavenging.

The Flag is Back

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Weather: 

  • Sky overcast, some clear patches (not much solar power generated today)
  • Visibility 15+ miles, no fog
  • Wind 10-20 knots W
  • Water calm. Some interesting standing wave patterns lately.

Boats/Visitors: 

  • On Thursday Greg came in the afternoon to top up our water supply. Pearson alum Norbert (currently alum in residence) also came along for the ride to check out our solar panels and provide suggestions for future improvements. Pearson maintenance volunteer Jimmy also stopped in for the night to visit race rocks before he goes home to Mexico. Safe travels!
  • We had many hands on deck, so we were able to successfully repair and raise the flagpole.
  • Yesterday Greg visited with a group of college guests who toured the island.

Ecological: 

  • The sea lions have started to haul out on the N + S/SW sides of Great Race Rock.
  • The oyster catcher chicks have grown to be nearly as big as their parents and are flying all over!
  • The seagull chicks are getting bigger and when rival adults attack they now fight back. On Thursday we spotted a chick with one eye pecked out and were concerned that it would not survive. Fortunately, when we checked later it was doing well.
  • There have been large numbers of black turnstones present this past week, 30+ at once

 

 

 

Visitors of All Kinds

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Weather: 

  • Wind 5-15 knots SW
  • Sky: Mostly grey, cloudy. Some rain and fog. Periods of partial clearing.
  • Water: Rippled, fairly calm.
  • Visibility: 10-13 miles

Boats/Visitors: 

  • Guy came to pick up our weekend visitors who headed home this afternoon. It was nice to have some company out here on the rock!
  • There were only a handful of whale watching boats in the reserve today since it was quite cloudy and rainy. We were surprised to discover a vessel hovering within 50 meters of a whale within the reserve this evening.

Ecological: 

  • While taking a water temperature reading we accidentally spotted a humpback whale hovering in the main channel! It stayed for about 30 minutes, surfacing approximately every 5 minutes in the same spot, facing towards the current.
  • The seagull chicks have continued to hatch and there are too many to count. They blend in with the yellowing grasses extremely well and have grown to be twice their original size in only a week. We noticed that one chick near the fuel shed hatched but did not survive, while its two nest mates appear to be healthy.
  • There has been one male stellar sea lion on middle rock for the past few days, and appears to not be moving much at all.
  • The goslings are nearly full grown now, and have been swimming

Census

  • 230 Harbour seals
  • 350 adult seagulls and many, many chicks
  • 4 moulting male elephant seals
  • 1 male stellar sea lion
  • A handful of pigeon guillemots
  • 8 adult oyster catchers, at least 7 chicks spotted
  • 1 humpback whale
  • 2 families of geese, and one additional adult pair
  • 1 nest of barn swallows

Big Creatures and Big Winds

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Weather: 

  • Visibility 14 miles
  • Partly cloudy, sunny
  • Wind 25-35 knots (gale warning in effect)
  • White caps and spray. Waves up to 4 m.

Visitors/Boats: 

  • The college boats are still in for maintenance, so we have not had any visitors. We are hoping to go to the main island soon but winds were much too strong and unpredictable today.
  • The past couple of days we have seen a handful of eco-tourism vessels and pleasure craft. Some vessels have approached within 20 m of our jetty and surrounding Great Race Rock. The elephant seals have been scooting up the jetty to get away and the few sea lions remaining appear disturbed.

Ecological: 

  • We were sad to find the missing gosling deceased. It seems that due to its injured foot it was easy prey for the bald eagles that have been swooping by lately.
  • We are now in the company of 4 very large male elephant seals who have stopped here to moult. They are enjoying taking regular baths in the shallow and protected jetty waters.
  • The occasional sea lion has stopped by and hauled out for a rest, but otherwise they have all moved on.
  • The seagulls are becoming more and more aggressive. We are anticipating the need to wear protective equipment sometime in the coming week!

Maintenance/Other:

  • We are still waiting for the delayed desalinator, so we are conserving water as much as we can in the meantime, as it is not possible for more to be delivered without the use of the college vessels.
  • We have been collecting shingles as the high winds are tearing them off of the sheds (new metal roofing is expected sometime soon), and often find fishing lures, bits of rope, and other litter wedged into the rocky intertidal.
  • The beautiful sunny days lately have meant that we have been able to operate entirely on solar power most days. We’ve been having some troubles with the battery charge readings but otherwise the system is working without a hitch!

Balaenoptera acutorostrata: Minke Whale–The Race Rocks Taxonomy

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Minke whales are being seen more frequently in recent years off Race Rocks .  See the posts on Minke whales sighted from the Ecological Reserve.
(We are still waiting for a picture of whales in the Ecological Reserve.)

For reporting Minke whales, go to  the Northeast Pacific minke whale project.

The BC Cetacean Sightings Network has a good description and images:

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Subclass: Eutheria
Order: Cetacea
Suborder: Mysticeti
Family: Balaenopteridae
Genus: Balaenoptera
Species: B. acutorostrata

 

Other Members of the Class Mammalia at Race Rocks.

taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.