Tag Archives: Heermann’s gull

Sediment Filters Installed

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What a beautiful, warm, summer day. The early fog to the south and west disappeared and it stayed calm and got warm. The smoke and particulates made for another spectacular sunset, this time without a cloud. The barometer has been slowly rising since last night with a bit of a leveling this afternoon and evening. It looks like they are forecasting outflow winds for tomorrow and that might keep the fog at bay.

There were 17 tour boats today and most of them were very respectful of the seals and sea lions that they were watching in the reserve. The recreational fishing fleet seemed to be off to the west towards Beechy Head and the Bait Shack. Although a few boats passed through slowly, no one was jigging in the reserve today.  Second Nature and Hyaku made several trips out and around the reserve with groups of students rotating through their orientation activities.

There were military explosions during the late morning and early afternoon.

There were only 99 adults Glaucous-winged gulls at sunset and I could only spot three young ones, (still actively begging). The rest have moved on. There is still one demented gull that is trying to nest, bringing bunches of grass and acting agitated. I wonder what happened to its internal clock? I also spotted both Heermann’s Gulls and California Gulls today. The number of cormorants, both Double Crested and Pelagics continue to rise. Every night a mystery bird arrives after dark and calls a bit. I would love to figure out what it is. It almost sounds like a Greater Yellowlegs but it is the wrong kind of habitat. I wonder if it flies out here because it is a safe(ish) place to sleep?

A lot of maintenance work was accomplished today. I started by washing the basement floor where plumber was going to be working. Courtney brought the plumber out in Second Nature in the morning and while he plumbed Courtney and I dealt with propane tanks and electric fences. It was good to be able to chat with this veteran eco-guardian who now works on the waterfront at Pearson College. I learned a lot. Now both houses have big cartridge filters in-line in and it looks like really professional.

 

Animal Census

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Low winds today picking up in the afternoon/evening. Clear skies for most of the day. Forecasted winds of 15 knots for tomorrow morning rising to 30 in the afternoon.

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Animal Census (by Anne):

Steller Sea Lions 229
California Sea Lions 388
Harbour Seals 81
Glaucous-winged Gulls 301 (including 29 chicks)
Double-crested Cormorant 3
Pelagic Cormorant 1
Canada Goose 11
Black Oyster Catcher 11
Black Turnstone 1
Greater Yellow legs 1
Very large mixed species feeding groups to the west southwest of reserve including 100s of Rhinoceros auklets, Common Murres, Heerman’s Gulls and California Gulls.

37 whale watching boats

5 recreational boats

3-4 trips from Second Nature

Baleen whale this morning spotted feeding in the same place as yesterday evening, to the SW end of the reserve.

Anne continued with training today. James from Hybrid Plumbing came out to fix the water heater this morning. Changed cartridge filters on desalinator. Prepared for shift change.

 

 

Heermann’s gulls in high numbers

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Overcast and cloudy for most of the day. No wind in the morning until noon when it starting slowly rising up to 16 knots around 1900h. Strong wind warning in effect for late tomorrow afternoon. A fog belt is coming in now and the horn has just started sounding (2200h).

DSC_0259A group from Victoria of a dozen kayakers paddled around the island this morning. They launched from Weir’s beach.

 

 

 

9 recreational boats in the reserve today                                                                     5 whale watchers

Two bald eagles visited the south islands this evening joined by an immature eagle and the three stayed there for over an hour. It was unclear which was being more harassed by the other–the eagles or the gulls and oystercatchers.

My father who is visiting counted 574 Heermann’s gulls today which is a notable increase from the 21 recorded on Friday.

Chopped and stacked wood. Ran the desalinator.

Sealion infusion

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Wardens’s report by Garry Fletcher contd.

In early morning calm –and clear with no wind– by 1115 hrs it was pouring rain. Predictable from the look of the barometer . The weather fluctuated all day from rain to sun with a rainbow and back to rain. Sea lion numbers are still building and one more elephant seal joined the elephant seal group  by the boathouse last night . So this is what it looked and sounded like this morning :

Click for a video of sites and sounds of the sealions

Click for a video of sites and sounds of the sealions

Several branded sealions here today:

At this time of year there are some non-breeding plumage Heermann’s gulls that one can pick out among the large gull population .

And a gallery of some of the other bird-life on the island, some migrating through.

9 whalewatching boats through the reserve this morning.  Swells and the approaching storm held them off in the afternoon.

The panoramas below were taken in the last two days:

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Gulls on the south islands in the morning. Note a mix of California, Glaucous-winged   and Heermann’s Gulls.

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Glaucous-winged, California,   and a few  Heermann’s Gulls and sea lions on the south-west corner of the island

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The south side of Great Race Rock island

West side of the docks--note electric fence installed to keep the sealions off the docks.

West side of the docks–note electric fence installed to keep the sealions off the docks.

East side of jetty

East side of jetty

The east shore of Race Rocks with California and Northern Sea lions.

The east shore of Race Rocks with California and Northern Sea lions.

On Sunday morning, the Davis weather instrument wasn’t working. On checking, I found that the UPC powerbackup was malfunctioning–will return it to the college IT dept.  Weather is back on now.

Census, birds and mammals

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Sea lion populations have stabilized in terms of numbers. With just ~250 California’s and ~150 Steller’s. Ever since the earthquake on 09/09/11 (which was not felt by me here), the sea lions have moved up from “the arena” and East bay on Great Race to surround three sides of the Keeper’s residence. They have blocked 2 of 3 entrances! They can be shooed away, but return during the night. The cool winds and overcast days permit them to sleep comfortably during the day only to be particularly raucous during the night. The transition between Glaucous winged gulls and their winter replacements the Thayer’s gulls has begun. Some Heermann’s gulls are present now as well. It appears at least one oystercatcher clutch was successful as an adult pair and their two fledged chicks are still present on Great Race.

Over-Wintering birds arriving

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-237, ‘2011-09-15’, ‘Other’, 0, ‘Sea lion populations have stabilized in terms of numbers. With just ~250 California ”s and ~150 Steller ”s. Ever since the earthquake on 09/09/11 -which was not felt by me here), the sea lions have moved up from “the arena ” and East bay on Great Race to surround three sides of the Keeper ”s residence. They have blocked 2 of 3 entrances! They can be shooed away, but return during the night. The cool winds and overcast days permit them to sleep comfortably during the day only to be particularly raucous during the night. The transition between Glaucous winged gulls and their winter replacements the Thayer ”s gulls has begun. Some Heerman ”s gulls are present now as well. It appears at least one oystercatcher clutch was successful as an adult pair and their two fledged chicks are still present on Great Race.’, ‘Ryan’, ’10:03:54 ,

Larus heermanni: Heermann’s Gull–The Race RocksTaxonomy

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ASHeermans-Gull-Heermann’s Gulls , (Larus heermanni) start turning up at Race Rocks in July.  On July 6 of this year a record number , 574 Heermann’s gulls were observed. This  was a notable increase from the 21 recorded a few days earlier The winter plumage is quite dark compared to the summer breeding plumage. They migrate here up from the breeding grounds in Mexico.

 

rmfall2010heermann

 

Ryan Murphy took this photo in 2010 showing features of the flight feathers.

On 574 Heermann’s gulls today which is a notable increase from the 21 recorded on Friday.

 

 

Domain Eukarya
Kingdom Animalia
Phylum Chordata
Sub-Phylum Vertebrata
Class Aves
Order Charadriiformes
Family Laridae
Genus Larus
Species heermanni
Common Name: Heermann’s Gull,

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51 ecotour boats, 13 pleasure craft,

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Monday, August 12, 2002
Good Evening
TEMPERATURE: Max. 21.5 C  Min. 10.1 C  Reset 20.0 C
MARINE LIFE: Happy to report, missing adult goose back with the group today, no signs of trauma and no clue to explain it’s absence.The geese arrived mid-morning and flew off again late safternoon. Saw a group of about 16 Canada Geese in the familiar V formation fly over William Head this evening so I guess it’s that time of year already! Another sign of the coming fall season is the nightly arrival of small groups of sea lions. This morning there were 8 Northern and over 30 California sea lions hauled out, mostly on the rocks just northeast of Middle rock. By noon some Californians were scattered along the ridge of North rocks and several small groups just floating about in the kelp beds. 1 California sea lion has the # 1233 branded on it’s back and saw another with yellow tags on it’s flippers but could not read the number although this evening we tried to get close enough in the boat. Many of the young gulls are finally in the water, the sea conditions were perfect today with barely a ripple, the usual afternoon westerlies did not materialize and it was one of those rare warm evenings on Race Rocks.There were quite a few gulls in the kelp just to the east of Gr. Race, some were Heerman’s gulls with their unmistakable plumage, black feet and red bills.I expect it was much cooler than sitting here on the hot rocks -the young gulls were all panting in the heat.
HUMAN INTERACTION: There were 51 ecotour boats, 13 pleasure craft, the Hyaku in from P.C. with Garry and guests about 13:30 and again about 18:30 -Ryan at the wheel- with a group tour of the M.P.A.
posted by Carol or Mike S at 7:37 PM
Good Morning
WEATHER: Sky Clear  Vis. 15 Wind North East 5 Knots Sea Rippled
posted by Carol or Mike S at 5:15 AM