Wednesday, July 25, 2007

August 2007 Extreme Pelagic

LITTLE/MACARONESIAN SHEARWATER, first photographically documented North American sight record.

A Little Shearwater representing the race that breeds on the Azores, Madeira and the Canary Islands in the eastern Atlantic (Puffinus assimilis baroli), was seen on August 25, 2007 roughly 60 miles south of Nantucket on a BBC boat trip from Hyannis to Veatch and Hydrographer Canyons. This is the first ever recorded in New England, and will likely be the first accepted record in the United States since an individual was washed up on a beach in South Carolina in 1883!
Until recently, the Little Shearwater (Puffinus assimilis) had been classified together with several other similar forms of small black and white shearwaters occupying oceans of the northern and southern hemispheres. Recent mitochondrial DNA research has shown that the two northern hemisphere forms (P. a. baroli and P. a. boydi) are quite different from the southern hemisphere forms and are actually more closely related to the north Atlantic form of the Audubon's Shearwater. In 2005, the British Ornithological Union decided to act on this research and reclassified the two north Atlantic forms of Little Shearwater as distinct from those in the southern hemisphere and gave them the new name Macaronesian Shearwater (P. baroli). Most European authorities have accepted that these forms are distinct, however the American Ornithological Union has not yet acted on this research and the currently accepted AOU name, and therefore American Birding Association name is still Little Shearwater.




Map created by Steve Mirick

Subject: BBC Pelagic; 25 Aug. 2007: Macaronesian Shearwater
From: Rick Heil rsheil@comcast.net
Date: 28 Aug 2007 8:20am

SATURDAY, 25 AUGUST 2007
BROOKLINE BIRD CLUB 'Extreme Pelagic' from HYANNIS, MASSACHUSETTS to VEATCH'S & HYDROGRAPHER CANYON (0400-2100 hrs.)
Weather: Mostly clear, morning and afternoon light to moderate fog, S-SW winds 5-10 mph, 62-75 F. Seas: 3-5 feet. Visibility: Generally good, although only fair in light fog and haze at times.

Every trip to these waters is an adventure into the last true frontier of New England ornithology.

More than seventy-five participants plus the captain and crew of the Helen H departed Hyannis at 0400 hrs., crossing Nantucket Sound and this time exiting through Muskeget Channel en route to Veatch's Canyon where water temperatures reached 77 F. We cruised down the center of the canyon and continued south well off the shelf edge into water more about 4000 feet deep before steaming east to Hydrographer Canyon where we worked back north, crossing the cold water Nantucket Shoals (53 F) to Nantucket Sound, arriving back in port around 2100 hrs.


The big event was the observation of a Macaronesian Shearwater (Puffinus baroli), formerly considered a subspecies of Little Shearwater (P. assimilis), which was photographed by perhaps a dozen photographers on board! Photos will be presented soon. There are two specimen records for baroli: one found dead Sable Island, NS, 1 Sep 1896 (AMNH ###; Tufts, R.W. 1986. Birds of Nova Scotia, 3rd ed. with revisions by I.A. McLaren and the Nova Scotia Bird Society. Nimbus Publishing Ltd. & The Nova Scotia Museum, Halifax, NS); one found dead Sullivan's Island, SC, Aug 1883 (MCZ #220051; Post, W. and S. A. Gauthreaux, Jr. 1989. Status and Distribution of South Carolina Birds. The Charleston Museum, Charleston, SC). There is one recent credible sight record of three birds: Bruce Mactavish saw one 23 Sep 2003 ~80 km sws. Sable Island, NS and two 80 km s. Sable I. 24 Sep (North Am. Birds 58(1):31)




Little / Macronesian Shearwater

Photos courtesy of © Blair Nikula 2007



Scott Spangenberg has posted more photos to his website and Jeremiah Trimble will archive them for records committee review.
More photos from the trip can be seen at MassBird.Org on their Bird Sightings page.

Cory's Shearwater (3): One definitive borealis photographed.
Greater Shearwater (41)
Sooty Shearwater (1-2): Nantucket Shoals.
Manx Shearwater (6)
Audubon's Shearwater (3): Vicinity Veatch's Canyon.
MACARONESIAN SHEARWATER, P. baroli (1): Pursued and photographed over perhaps a ten minute period in 70+ degree water approximately 18 miles north of Veatch's Canyon at 40 18.2 N, 69 48.1 W. Formerly considered a subspecies of Little Shearwater (P. assimilis). Briefly, it was a very small shearwater with a rapid fluttery flight, exceptionally blackish upperparts, save for the notably pale wing panels and a thin white lines along the edge of the greater and median coverts. The face was very extensively white, with the dark eye isolated in the white field. The underwings appeared cleanly white, with narrow, well-defined dark borders, and the undertail coverts were extensively white as well. A careful review of full monitor photographs when they appear may fine tune some of these 'in the field' impressions. This is the first photographically documented N. Am sight record (aside from two specimen records) and obviously a first Massachusetts record, if accepted.
small shearwater sp. (1)
Wilson's Storm-Petrel (415)
BAND-RUMPED STORM-PETREL (1): Sitting with a Greater Shearwater off the shelf at 40 07.6 N, 69 05.6 W, flushed and closely observed and photographed in flight. About the sixth MA record, and only the second or third photographed.

Band-rumped Storm-Petrel
Oceanodroma castro
Photo courtesy of © Ian Davies 2007
"Click" on any image for a larger photo.










Northern Gannet (2 sub-ads.)
Hudsonian Godwit (40): A very remarkable sighting of a migrating flock southbound late in the afternoon low over the water over Nantucket Shoals. Nest landfall Argentina?
Ruddy Turnstone (1): Circling the boat along the shelf edge.
Red-necked Phalarope (3+)
Red Phalarope (8)
phalarope sp. (8+)
Herring Gull (1 juv.)
Great Black-backed Gull (1)
Common Tern (4 ads.)
Pomarine Jaeger (1 ad./near ad.): South of Muskeget Channel.
Tree Swallow (3): Vicinity Veatch's Canyon.
Fin Whale (8+)
Humpbacked Whale (3+)
Gray Grampus (170+): Warm water canyons and slope.
SPERM WHALE (1): In 4000 ft deep water over Veatch's Canyon.
Common (Saddleback) Dolphin (40+): s. Nantucket Shoals.
Bottlenosed Dolphin (35+): warm water canyons and slope.
dolphin sp. (50+)

Hammerhead Shark sp. (1)
shark sp. (2)
Ocean Sunfish, Mola mola (2)
Manta Ray (1)

Green Darner, Anax junius (1): Along shelf edge.

Many thanks again to Ida Giriunas for organizing these trips and to the Brookline Bird Club for including them in their program, to all of the participants who make them possible by signing up, and to Marshall Iliff and Steve Mirick for their informative and insightful commentary and expertise during the cruise. Thanks to to Captain Joe Huckameyer (and crew) of the Helen H. The captain was exceptional and indeed instrumental in the chase of the Macaronesian Shearwater which permitted us to document it so well.

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Sunday, July 22, 2007

July 21, 2007 Pelagic

Special Thanks to Joe Sutherland for the use of his spectacular images.
Larger versions of these and a few more photos from the trip by Joe can be seen at:
http://www.sutherlandbirds.com/Hydro2007.html

Wilson's Storm-Petrel © Joe Sutherland 2007

BBC 'Extreme Pelagic' to Veatch's & Hydrographer
Canyons; 21 July 2007: Bridled Terns.
From: Rick Heil rsheil@comcast.net
Date: 22 Jul 2007 12:30pm

SATURDAY, 21 JULY 2007:
BROOKLINE BIRD CLUB 'Extreme Pelagic' from HYANNIS, MA to VEATCH'S & HYDROGRAPHER CANYON
Weather: Mostly overcast, N-NNW winds 5-10 knots, a few showers, 59-65 F.
Seas: 3-6 feet in AM, subsiding to 2-4 feet in PM.
Visibility: Generally good to excellent.

Every trip to these waters is an adventure into the last true frontier of New England ornithology.

Greater Shearwater © Joe Sutherland 2007
Roughly seventy-seven participants plus the captain and crew of the "Helen H" departed Hyannis at 0400 hrs., crossing Nantucket Shoals (sea surface temperatures of 58 F) en route to the warm deep waters around
Veatch's and Hydrographer Canyons. We cruised the east side of Veatch's and continued southeast well off the shelf edge into water more than 5000 feet deep and 75 degrees F for a couple of hours before working northeast
recrossing the continental shelf edge to Hydrographer Canyon, then back NNW across Nantucket Shoals to Nantucket Sound, arriving back in port around 2115 hrs.

Try as we might we did not come up with a Pterodroma or any rare storm-petrels ... this time, but we did encounter many of the expected warm water seabirds species, highlighted by three (!) Bridled Terns, tying the state single day high count for the species (from Martha's Vineyard during Hurricane Bob in 1991). We also enjoyed an outstanding cetacean show with no less than six species of whales and dolphins encountered.

Loggerhead Turtle © Joe Sutherland 2007
Common Loon (9): Nantucket Shoals.
Cory's Shearwater (30): Southern Nantucket Shoals.
'SCOPOLI'S SHEARWATER', C. d. diomedea (2-3): Southern edge Nantucket Shoals; smaller Mediterranean race of Cory's; mixed in roosting flocks of bulkier, bigger billed borealis Cory's; probably not rare in these waters as
we are coming to realize. Smaller size, shorter and more slender bill, and white projecting onto underside of primaries (noted on at least one individual).
Greater Shearwater (110): Shoals and deep shelf/canyon waters.

Greater Shearwater © Joe Sutherland 2007
Sooty Shearwater (28): All Nantucket Shoals.
Manx Shearwater (4+): Nantucket Shoals.
Puffinus sp. (Manx/Audubon's) (2-3): A couple sitting (and flying) with Cory's on the southern shoals left some observers (including me) uncertain, while other observers thought them rather obvious Manx.
AUDUBON'S SHEARWATER (3+): Shelf waters, vicinity Hydrographer Canyon; not at all rare here but is a specialty of these warm New England shelf waters.

Audubon's Shearwater © Joe Sutherland 2007
Wilson's Storm-Petrel (850): Roughly 90% molting adults, 10% 'clean' first-winter birds.
Leach's Storm-Petrel (1): Noted astern by a few experienced observers. Otherwise curiously absent; likely more numerous here in August.
Northern Gannet (2 sub-ads.): N. Nantucket Shoals.
Least Sandpiper (2): Nantucket Shoals.
Laughing Gull (15+): Nantucket Shoals.
Common Tern (20+): Nantucket Shoals.
BRIDLED TERN (3): One 1st-year west of Hydrographer Canyon at 40 09 N, 69 11 W, then later two (one adult or near adult, one 1st-yr.) together much farther north at the southern edge of Nantucket Shoals at 40 31 N, 69 18 W. The latter two were located roosting on a floating log and we were able to approach very closely for some great views and hopefully some nice photographs by those with cameras. The young bird appeared momentarily to
be food begging from the adult. We last encountered this species here in August of 2004 and it probably occurs regularly in these waters in late summer and early fall, July through September.

Bridled Tern © Joe Sutherland 2007
LONG-TAILED JAEGER (1-1S): Southern Nantucket Shoals. Also not rare here and seems to be the default jaeger in late summer far offshore from the mid-shoals south.
Brown-headed Cowbird (1): One flew along with us for a time early morning near the exit of Nantucket Sound.
Most all of the marine mammals were in warmer waters from the southern edge of the shoals south:

 Pilot Whale © Joe Sutherland 2007
Fin Whale (4)
Humpback Whale (4)
Long-finned Pilot Whale (15)
Gray Grampus (6)
Common (Saddleback) Dolphin (50)
Bottlenose Dolphin (110)
dolphin sp. (20+)
seal sp. (1): southern Nantucket Shoals.

Bottle-nosed Dolphin © Joe Sutherland 2007
Loggerhead Sea Turtle (1): Great views alongside the boat.
sea turtle sp. (1)
Ocean Sunfish, Mola mola (6)
tuna sp. (6+): Seen jumping.
Mako Shark (2)

Atlantic White-sided Dolphin © Joe Sutherland 2007
We encountered two inflated, drifting rubber/plastic rafts off the continental shelf edge, and recovered both - no bodies. One had a 'perfect' cut-out from a shark bite out of the floor.

Thanks as always to Ida Giriunas who does the real work in organizing these trips, and to Steve Mirick, who despite a serious bought of 'mal de mer' man'd up and did the usual yeomans job on the microphone.

Richard S. Heil
S. Peabody, MA
rsheil@comcast.net 

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