Tag Archives: helicopter

August 24 and 25

Aside

On Wednesday, a Coast Guard Helicopter arrived with a repair crew to deal with the foghorn.  While the Glaucous-winged Gulls around the helipad were disrupted temporarily, and many California Gulls on the Middle Islands took to the air, most were back in their places within a few minutes. The marine mammals from harbour seals to elephant seals were relatively unaffected, with the exception of several Steller’s sea lions which briefly moved from the jetty area.  They returned within 10 minutes of the helicopter’s departure. Although the foghorn was given a clean bill of health in the good weather, it failed again on Thursday when the fog lasted several hours. The Coast Guard was notified.

Several branded sea lions are being seen.

A Common Raven (not common on Race Rocks) flew over the island around noon.

Census numbers show changes in the birds that have been breeding here. Most of the PIGU have moved on now that young have fledged. Likewise, GWGU numbers are dropping as young gulls take to the air.

Harbour seals and shorebirds have been adjusting to increasing presence of sea lions, with the former loafing more on the outer islets, and the shorebirds bunching up more against the rocks on the east of the island rather than on the beach.

This will be my last post as relief ecoguardian this year. It’s been a pleasure to be here again amongst the wildlife. I hope my personal project–renewal of the compost–will be appreciated by the ecoguardians who follow. For a more personal and detailed look at life as a relief ecoguardian, please check out my blog at http://nightingaleadventures.blogspot.ca

Ecological Notes:

  • The young elephant seals appear to have moved on. The alpha male continues and has started his molt, moving between the Science Building for resting and the jetty for relief.
  • Passerines seen in the last two days were Brown-headed Cowbird and Common Raven.
  • Branded Steller’s sea lions (882R, 998E, 431Y, and 486Y) and 1 branded California sea lion (V29) were seen during census on Wednesday.  882R and a new California sea lion (U958) were seen on Thursday. The latter also visited Race Rocks in 2020.
  • Bird action on the water over the last two days, with many birds feeding on the tide lines.
  • 2 California sea lions breached the fences on Thursday Both were escorted back to the other side of the fences.
  • See photos below for more ecological sightings.

Census (Wednesday, August 24):

Mammals

  • Elephant seal: 1 (1 adult male)
  • Steller sea lion: 210 (including branded (882R, 998E, 431Y, and 486Y)
  • California sea lion: 343 (including branded V27)
  • Harbour seal: 237
  • Sea Otter: 1
  • Harbour porpoise: 14 (to the west of the reserve)

Birds

  • Black oystercatcher: 5 (4 adults 1 chick )
  • Killdeer 1
  • Black Turnstone: 85
  • Surfbird: 10
  • Common Murre: 300, plus another 550 beyond the reserve
  • Pigeon Guillemot: 28
  • Rhinoceros Auklet: 8
  • Heermann’s Gull: 2
  • California Gulls: 800, plus another 500 beyond the reserve
  • Glaucous-winged Gulls: 343 adults 141 chicks
  • Pelagic Cormorant: 1
  • Brandt’s Cormorant: 11
  • Common Raven: 1
  • Brown-headed Cowbird: 1

Weather:

  • Yesterday (Wednesday, August 24):
    • Sky: Brief period of fog in the morning, then clear
    • Wind: Variable calm-25 kts
    • Sea: rippled to 2′ chop
    • Temperature Low 12oC, High 18oC
  • Today (Thursday, August 25):
    • Sky: Foggy until mid-afternoon, clear and sunny to overcast
    • Wind: W/WSW 16-37 kts
    • Sea:  light chop turning to high waves by evening
    • Temperature Low  12oC, High  20oC

Facility Work:

  • Solar panels cleaned daily. Windows washed.
  • Fence line visually inspected and several posts put back into place.

Vessel Traffic:

  • Many Canadian ecotour boats have been nearby and heading through the waters of the ecological reserve. Cruise ships are going through daily.

Here are photo highlights from the past two days. Click on the photos for larger views and captions.

431Y remains at Race Rocks

486Y still on Race Rocks

882R branded at Rogue Reef, OR in 2011

998R still on site

Sea Otter is back in the kelp off the east side of Race Rocks.

Foghorn repair crew landing

Coast Guard crew cleaning their solar panels.

Alpha male elephant seal beginning his annual molt.

Steller’s sea lions

California Gulls circling during helicopter approach

Marine mammals were unperturbed by the helicopter.

Adult and some juvenile gulls departing as helicopter landed.

Youngsters gathered into creches when the adults left due to helicopter landing

It didn’t take long for the gulls to resume normal activities.

Alpha male elephant seal beginning his annual molt.

Alpha male elephant seal beginning his annual molt.

Alpha male elephant seal beginning his annual molt.

Brown-headed Cowbird

U958 was branded in Astoria, OR in 2015 and was previously seen at Race Rocks in 2020.

Surfbird molting from its breeding plumage.

Neck wound caused by entanglement.

Fence breach!

California sea lion branded at San Miguel Island, California in 2010.

Seal Studies and Helicopters

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We received a response from the scientists who had tagged the elephant seal mentioned and pictured in this previous post. They were able to share some interesting information about GE103, whom we nicknamed Eric. GE103 was part of a mother and pup interaction study, as well as the subject of a blubber biopsy study.

 

“Eric”, GE103

Juliette Linossier, a researcher working under a Fyssen grant at UC Santa Cruz/Año Nuevo Reserve, was able to tell us more about the early life of this animal and others. She told us that shortly after the birth of another elephant seal (GE338), there was a huge storm at Año Nuevo and GE338 was separated from it’s mother. The pup was stuck on the beach, and his mother in an protected elevated area. They called to each other for a long while, but were never able to return to each other. GE338 did survive but was nursed by another female in the colony.

The now ’empty nest’ mother of GE338 became attached to GE103! She nursed him, and stayed close to him and his mother, G9474. Thus, GE103 (or as we call him, Eric) was able to take advantage of more than one milk source as a pup; the two mothers even fought over him from time to time.

According to her bio, Juliette wants to investigate the link between allonursing and maternal cognitive abilities using new approaches. Using time-lapse photography, chemical profiles and other techniques she plans to look at variables such as maternal age, pup similarity, genetic connection, spacial proximity and more to further understand what drives allonursing in these interesting creatures. Thanks for sharing, Juliette!

GE103’s blubber biopsies were taken for the purpose of furthering the understanding of pollutants bioaccumulating in marine mammals. Read more about this subject here.

Many thanks to Patrick Robinson, director of Año Nuevo Reserve and lecturer at UC Santa Cruz, for helping us learn more about this work.

We left Race Rocks last Monday (October 30th), and hours before leaving we were surprised by the landing of a Bell 412EPI Coast Guard helicopter. They came to Race Rocks in order to replace the solar battery bank beside the foghorn (near the base of the lighthouse). We were able to get great video of them landing as well as taking off!

Unfortunately, as one can see at the left of the video the landing scared many sea lions off of the rock in a rush. Without knowing that they were coming we had no chance to gently move any vulnerable animals away from the helicopter pad. We were able to speak with someone at the college about this, and the Coast Guard will hopefully be able to better work with Race Rocks in the future to ensure the safety and comfort of the animals.

The pilot was kind enough to take a moment to show us around and allow us to take some pictures. He explained that a smaller helicopter could have been landed near the house, but the 412EPI’s cargo capacity (over 6000lbs) was needed to transport the batteries. The helicopter is powered by a Pratt & Whitney PT6T-9 turboshaft engine that makes over 2000hp (about 1500kW), and it’s made in Canada!

We enjoyed our time at Race Rocks (a big thanks to everyone who supported us during our term), and hope to return and continue this work protecting and observing the fragile ecosystems and the animals within. Until next time!

Census and update on pup

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Weather

  • Visibility: 10-15 miles
  • Wind: ranging 20-30 NE
  • Sky: cloudy
  • Water: choppy 1-2 metres

Boats/Visitors

  • Not much boat traffic, saw a couple helicopters though

Ecological

  • The pup born on tuesday is doing well
  • The larger male is keeping the smaller 3 males away from the mom and pup
  • still a few sea lions around

Census

  • California Sea Lions – 76
  • Stellar Sea Lions – 58
  • Elephant Seals – 6 (4 males, 1 female and 1 pup)
  • Harbour Seals – 32
  • Cormorants – 128
  • Gulls – 94
  • Oyster Catchers – 24
  • Black Turnstones – 27
  • Eagles – 4

Break from the rain

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Weather

  • Visibility: 15 miles
  • Wind: 5-10 NE
  • Sky: Cloudy
  • Water: mostly calm

Boats/Visitors

  • A few boats around, fisherman and ecotours
  • A coast guard helicopter flew over numerous times today

Ecological

  • The same 4 males and 1 female elephant seals
  • still about 100 sea lions I think, mostly stellar
  • A lot of eagles around

Also included photos I took of some oyster catchers I saw on Dec 1st the day I left for my winter break