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Monthly Archives: August 2019

Re: FRNC – Canada Warbler, 31 Aug 2019

The Canada Warbler continued to make hyper, sporadic appearances in the Ficus trees next to the Committal Shelter on the east side of the cemetery up until at least noon on Saturday the 31st. It was also seen again for a short period sometime between noon and 12:30 or so in the pines across the street. It would disappear from view for 10 to 15 minutes at a time (maybe moved to other Ficus or pines across the road) and then reappear. Helps to have multiple sets of eyes looking for it.

Lisa Ruby
Sabre Springs
Source: SanDiegoRegionBirding Latest Reports

Canada warbler

Still here at FRNC right of the hut in the double pines ( sprawling low ones)

Alison
Source: SanDiegoRegionBirding Latest Reports

a correction to my report yesterday of a Nazca booby on North Island

Yesterday I reported a Nazca booby sitting with gulls on the North Island Ammunition Pier in San Diego Bay.
I assumed it was the same bird that was photographed sprawled on the adjacent beach area on August 26.

However, Marilyn Dudley wrote to tell me that that distressed bird had been rescued on Tuesday by Seaworld, but was too emaciated and dehydrated to survive.

So the bird I saw was a different individual.
And I, coming off a long and very choppy trip and thinking about little else except getting back to the solidity of land, did not look at it carefully enough to determine if it was a Masked or a Nazca.

So, change the observation to the undetermined category, Masked/Nazca booby.

Stan Walens, San Diego
August 31, 2019; 2:05 pm
Source: SanDiegoRegionBirding Latest Reports

Cabrillo Tide Pools – apparent Masked Booby, 31 Aug 2019

While quite a large number of people looking for frazari American Oystercatcher at Cabrillo NM this morning, no sign of that bird, an apparent adult Masked Booby flew by quite close to shore north-to-south. The bill looked greenish and tail appearance a blackish narrow belt around tail tip so looks pretty good we thought for Masked Booby.

There are some photos taken we will take a closer inspection later.

Called out I believe by Dan Jehl – thanks for the yell!

Gary Nunn,
Pacific Beach
Source: SanDiegoRegionBirding Latest Reports

Re: Jehl scale analysis of today American Oystercatcher

I saw the bird in question at 4:15 below the north end of the tidepool trail. The view was brief and distant. Unfortunately, I had little time to re-find it before having to leave at 4:30 when the tide pools close. 
Nicole Desnoyers
North Park

Source: SanDiegoRegionBirding Latest Reports

Nazca Booby, San Diego Bay

Went out on the Hornblower today.
There were almost no birds of any kind anywhere.
About 100 Black-venteds and 6 storm-petrels, 5 Blacks, 1 Ashy
The 9-Mile bank was lifeless. 2 Pink-footed shearwaters were almost the only birds there except for Western gulls and a very few terns.

On the way back into dock, we looked for the Nazca booby that was reported on August 26.
I saw it roosting among gulls on one of the fishing piers, the one that has the fake coyote on its northern edge.

Stan Walens, San Diego
August 30, 2019; 5:05 pm
Source: SanDiegoRegionBirding Latest Reports

Jehl scale analysis of today American Oystercatcher

I received some more pictures of the bird from Aaron Gyllenhaal which show the tail and tail coverts better as well as the upperwing wing stripe.

It keys out conservatively to 34, well within the range of American Oystercatcher.

CHARACTER                             CHARACTER STATE AND
SCORE

Upper
tail coverts             3       white, a few
black mottlings

Tail                           3       basal half of
rectrices white

Edge
on upper breast           3       black chest band
bordered by ragged

Belly                          6       entirely white,
as in palliatus

Under
tail coverts             3       mainly white

Thighs                         4       entirely white,
as in palliatus

Greater
secondary coverts      3       6-15 mm

   (width of white edging     

   in folded wing)            

Extent
of white wing stripe    2       white markings extend to outer
secondaries, but not onto primaries

Underwing
coverts              3       mainly white

Axillars                       4       white, as in palliatus

 

Stan Walens, San Diego
Aug. 30, 2019; 4:40 pm

Source: SanDiegoRegionBirding Latest Reports

American × Black Oystercatcher Hybrid (Haematopus palliatus × bachmani) – Cabrillo Nat'l Tide Pools

At 10:00 AM, 8/30/2019, an American × Black Oystercatcher Hybrid (Haematopus palliatus × bachmani) among three regular Black Oystercatchers along the shore about 1000 feet north of the 1st parking lot for the Point Loma tide pools in Cabrillo National Monument.

https://www.inaturalist.org/observations/31812213

++ Craig Chaddock / San Diego, CA

Source: SanDiegoRegionBirding Latest Reports