[obol] Ocean bird survey - includes Oregon sightings.
- From: Jeff Gilligan <jeffgilligan10@xxxxxxxxx>
- To: OBOL Birders Online <obol@xxxxxxxxxxxxx>
- Date: Wed, 17 Sep 2014 19:52:43 -0700
"HAPE" is Hawaiian Petrel.
Begin forwarded message:
> From: Peter Pyle <ppyle@xxxxxxxxxxx>
> Subject: Re: CalCurCEAS
> Date: September 17, 2014 4:43:45 PM PDT
> To: Paul Lehman <lehman.paul1@xxxxxxxxxxx>,
> Cc: "Jaramillo, Alvaro" <chucao@xxxxxxxxxxxxx>, Debra Shearwater
> <debiluv@xxxxxxxxxxxxx>, David Povey <dpovey@xxxxxxxxxxx>, Bruce Rideout
> <brideout@xxxxxxxxxxxxxxx>, Brad Waggoner <wagtail@xxxxxxxxxxxx>,Bill Tweit
> <bill.tweit@xxxxxxxxx>, Ryan Merrill <rjm284@xxxxxxxxx>,David Irons
> <llsdirons@xxxxxxx>, Shawneen Finnegan <shawneenfinnegan@xxxxxxxxx>, Russell
> Cannings <russellcannings@xxxxxxx>, Dick Cannings <dickcannings@xxxxxxx>,
> vanislebirder <vanislebirder@xxxxxxxxx>, Chris Charlesworth
> <c_charlesworth23@xxxxxxxxxxx>, Patricia Taylor
> <pat.mary.taylor@xxxxxxxxx>,Nick Gray <ngray@xxxxxxxx>, "Lethaby, Nick"
> <nlethaby@xxxxxx>,Jeff Gilligan <jeffgill@xxxxxxxxxxxx>, Bruce Labar
> <blabar@xxxxxxxxxxxxx>,Gus van Vliet <gusvanvliet@xxxxxxx>, "Heinl, Steve"
> <stevencheinl@xxxxxxxxx>, "Tobish, Thede G." <TobishTG@xxxxxxxxxxxxxxxxxx>,
> Aaron Lang <birdingak@xxxxxxxxx>,brad benter <bradbenter@xxxxxxxxxxx>, Dave
> Sonneborn <davidsonne@xxxxxxx>, bob dittrick <bob@xxxxxxxxxxxxxxxxxxxxx>
>
> Mike Force has very little internet access but was able to get this message
> out today. Some pretty novel sightings, especially off OR. I'll try to get
> more details and see if there are photos of the second Band-rumped SP, Juan
> Fernandez Petrels, etc.
>
> Peter
>
> I think the warm water anomaly has something to do with what we've been
> seeing. The biggest surprise has been Band-rumped Storm-Petrel. I saw one
> about 257 nmi west of Cape Arago, OR (no photo unfortunately) and Dawn and
> Jim Carretta saw one 15 Sept about 127 nmi west of the Rogue River, OR.
> There's been a few Guadalupe and Scripps's Murrelets off OR (and a pair of
> Guadalupes off WA as well), quite a few Cook's Petrels scattered about, and a
> single Stejneger's Petrel off OR, a few Hawaiian Petrels off OR and WA; a
> single Murphy's Petrel off California during our early Aug transit from San
> Diego. A couple of Juan Fernandez Petrels over some Striped Dolphins 263 nmi
> WSW of Pigeon Point was a surprise, while a Red-tailed Tropicbird 183 nmi
> west of Trinidad Head was not since we usually see a few on these cruises. I
> photographed an adult Brown Booby about 143 nmi west of Point Brown, WA and
> another adult too far for photos about 101 nmi west of Waldport, OR. I wasn't
> expecting to see so many Ashy Storm-Petrels off southern OR yesterday, about
> 170 just southwest of Brookings, about 10-15 nmi off the beach. A single
> Black Storm-Petrel was there as well, but just a smidgen over the state line
> in CA. It must have been in OR minutes before I found it (it was at 41°59.9'
> N). I saw a couple of Ashy Stormies farther north the day before, about 120
> nmi west of the Rogue River, in the same general area where the Stejneger's
> Petrel was, as well as a couple of Guadalupe Murrelets. At the end of August,
> in the albacore zone off OR, we found a remarkable concentration of about
> 4000 Arctic Terns. I don't think I've ever seen that many before. Jaegers,
> especially Long-tailed, are moving through right now, and, plenty of Buller's
> and Pink-footed Shearwaters; still no Flesh-footed or Manx Shearwaters yet.
> As for albatrosses, only three Laysan the entire trip, but Black-footeds
> almost daily. One of the weirdest sightings was a Pied-billed Grebe that flew
> past the ship 163 nmi west of Cape Foulweather, OR.
>
>
> At 07:51 AM 6/16/2014, Peter Pyle wrote:
>> Of interest to this group will be that NOAA/SWFSC will be repeating the
>> "CSCAPE" cruises this summer and fall, from (tentatively) July 27 to
>> December 3rd. It will be called CalCurCEAS (California Current Cetacean and
>> Ecosystem Assessment Survey) this year, a mouthful. The CSCAPE cruise in
>> 2005 resulted in many records of interest, including Ringed/Hornby's
>> Storm-Petrel, Parkinson's Petrel, Stejneger's Petrel, Murphy's Petrels in
>> October-November, probable Providence Petrel, etc. (NAB 60:4-13). It looks
>> like Michael Force will be on throughout and will keep us posted.
>>
>> Peter
>>
>> At 07:42 PM 6/15/2014, Paul Lehman wrote:
>>
>>
>>
>>> -------- Original Message --------
>>> Subject: RE: BC 25 May Hawaiian Petrel sighting
>>> Date: Sun, 15 Jun 2014 14:19:42 -0700
>>> From: Morgan, Ken <Ken.Morgan@xxxxxxxxxxxxx>
>>> To: Paul Lehman <lehman.paul1@xxxxxxxxxxx>
>>>
>>>
>>> Hi Paul
>>>
>>> Thanks for sending this out.
>>>
>>> As I have mentioned to you before, we have seen many HAPE over the years -
>>> but much further west than the route you take.
>>>
>>> The following paragraph is taken from a poster that we presented a few
>>> years ago (the one I referenced before and sent you an image of where we
>>> had seen HAPE):
>>>
>>> “HAPE flight trajectories are strongly correlated with wind speed and
>>> direction, and are thus influenced by the locations of areas of low and
>>> high pressure (Adams and Flora 2010, Adams et al. 2012). On average, the
>>> June-September 1024 mb high in the NE Pacific is located at approximately
>>> 36° N; under average Sea Level Pressure (SLP) conditions HAPE seldom wander
>>> farther north than 45 ° N. All of the birds seen at-sea, as well as the 5
>>> satellite-tracked ‘long-trips’, were associated with anomalous SLP
>>> conditions; either with cyclones (transiting lows) or large areas of
>>> enhanced high pressure that had shifted northward.
>>> As HAPE make their clockwise foraging trips in the N Pacific, we suggest
>>> they are more likely to occur off the west coast of N. America (BC to CA)
>>> when the N Pacific high is strong and has shifted to the north and east. We
>>> predict that when a strong high is centred on or above 40 ° N, HAPE will
>>> more likely occur within the study area; whereas, in the absence of
>>> infrequent transiting lows and when the high is located near its
>>> climatological average (i.e., 36° N), they will be less frequently observed
>>> above 45° N.”
>>>
>>> Anyway, the reason I mention this (again) is that I think the above
>>> statements could easily apply to other ‘rare’ Pterodroma species.
>>> For example, the last time I was really far offshore (June 2009) not only
>>> did I see many HAPE, I am quite convinced (about 85% certain) that I also
>>> saw 2 Juan Fernandez Petrels. However, I don’t have any photographs to
>>> verify/prove it. (sorry if I have already mentioned the JFPE comments
>>> before). I also had a very good look (on that same trip) at a bird flying
>>> within 3-4 m of a definite MUPE, that I swear was a light-morph Herald
>>> Petrel (or perhaps a light-morph Kermadec Petrel [but I am leaning more
>>> towards a HEPE]).
>>> However of course, without a photo, NOBODY believes what I saw!
>>>
>>> All that said, I suspect that when there are anomalous meteorological
>>> conditions in the NE Pacific, HAPE and many other Pterodroma species shift
>>> further north and east. I personally feel that we still know relatively
>>> little about how far some of these species wander beyond their ‘typical’
>>> at-sea ranges.
>>>
>>> Cheers
>>> Ken
Other related posts:
