Two Trips: Sept.22-23 and Oct.22


Our last organized pelagic trip of the 2018 year (Oct.7-8, 2018) got its target: 2 Great Skuas in mid-Gulf Of Maine

2015 May 20-22 Hatteras Pelagic Trips

NOTE: THESE TRIPS WITH BRIAN PATTESON ARE HIGHLY RECOMMENDED!!!

Aiming for a better understanding of how these waters off Cape Hatteras compare with the waters off NJ/NY and those off New England & Nova Scotia, including seabirds and the whole marine ecosystem (other biology, and oceanography, etc) .... and how all of these are changing over time.

F.Mantlik and T.Robben planned three 12-hour pelagic trips with B.Patteson from Hatteras, North Carolina on May 20-22, Brian's first trips of the Spring season ( www.patteson.com  Seabirding | Gulf stream pelagic trips ). Best seabirds seen on those three days included Trindade Petrel, Fea's Petrel, Black-capped Petrel, Bridled Tern, South Polar Skua, Audubon's Shearwater, Arctic Tern, Leach's Storm-petrel and Band-rumped Storm-petrel.

The following day-by-day numbers include May 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 (we were NOT on the May 23-to-31 trips but those sightings are also worth including in the numbers immediately below, in parentheses). The species numbers for those multiple dates are shown in the parentheses, starting with May 20th being the first in the list of numbers:

Species (May 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31) (June will be added)   << pattern of observations below.
  • Trindade Petrel (0, 1, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0)   #1 target species and we got it! We thought this would be an early arrival and planned our trip around these early dates. And crossed our fingers! It worked!
  • Fea's Petrel (0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0)
  • Fea's/Zino's Petrel (0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0). Not seen by us, but only on May 25th.
  • Bermuda Petrel (0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0). Not seen by us, but only on May 25th.
  • Black-capped Petrel (66-67, 79-84, 85, 70, 28, 25-30, 10, 20, 26, 21, 5, 9)  
  • Cory's Shearwater (7, 29, 12, 23, 23, 50+, 17, 33, 47, 256-261, 130, 78)
  • Great Shearwater (0, 0, 0, 5, 8, 8-9, 9, 15, 33, 161-164, 36-37, 12)
  • Sooty Shearwater (16, 11, 10, 7, 14-17, 25, 13-15, 35, 6, 9-10, 2, 2)
  • Manx Shearwater (0, 5-6, 0, 0, 0, 0, 0, 0, 1, 3, 4, 2)
  • Audubon's Shearwater (20, 10-12, 7, 9, 7, 30, 22, 11, 21, 40, 19, 18)
  • Wilson's Storm-petrel (152, 215-255, 102-127, 200-250, 170-200, 150, 170-200, 120-140, 90-95, 90-95, 80, 84-94)
  • Leach's Storm-petrel (0, 13-14, 1, 4, 3, 8, 7-8, 5-7, 12, 5, 3, 10)
  • Band-rumped Storm-petrel (0, 4-5, 0, 4, 6-8, 5-6, 4, 2, 1, 2, 0, 1)
  • White-tailed Tropicbird (0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0). Not seen by us, but only on May 26th and 28th.
  • Red-necked Phalarope (11, 0,  43, 1, 2, 0, 0, 0, 0, 0, 0, 0)
  • Arctic Tern (0, 7, 2, 3, 0, 1, 3, 2, 2, 15+, 6, 6)
  • Bridled Tern (1, 0, 0, 0, 0, 0, 0, 0, 1, 2, 1, 0)
  • Parasitic Jaeger (0, 2, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1)
  • Pomarine Jaeger (6-8, 3, 1, 4, 3, 0, 3, 2, 0, 5, 3, 1)
  • Long-tailed Jaeger (0, 0, 0, 0, 1, 5, 1, 8, 6, 9, 11, 9)
  • South Polar Skua (0, 2,  0, 0, 2, 0, 1, 0, 1, 4, 1, 2)
  • Common Tern (3, 1, 0, 0, 4, 0, 1, 0, 0, 0, 0, 1)
  • Cattle Egret, (1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
  • etc


Full reports on recent trips (and details on the above numbers) are available at the B.Patteson blog...
Seabirding: May 2015  << worth taking a look, including great photos!

Brian Patteson's operation is excellent, exciting and very highly recommended. Use his main web site for planning your own trips there...
www.patteson.com

And here is the multi-year history of birds seen on Brian Patteson's trips...
Cape Hatteras pelagic trips and sightings

Brian Patteson's 61-foot long "Stormy Petrel 2"... photo taken from camera on a kite...


Note that during these days May 20-22 the SST sea surface temperatures (of the water) were 72-73F just off shore, increasing gradually to 77-78F at the maximum distance from shore, over the shelf break, and into the Gulf Stream or its eddies, as indicated by our infrared temperature sensor.

The warm Gulf Stream is one of the reasons why waters off Cape Hatteras are so exciting....
The Gulf Stream that runs through the BermudaTriangle is swift and turbulant.  It flows at 4 to 5 knots along the shelf break until it deflects out over the open ocean off Cape Hatteras.  A constant succession of massive eddies and upwellings peel off the Gulf Stream’s western wall, carrying life from the tropics to the temperate waters of North Carolina.


Click on any of the following images below to enlarge, and then press ESC key to return.

Cape Hatteras has an interesting history...
Cape Hatteras - Wikipedia, the free encyclopedia
Cape Hatteras is part of North Carolina's Outer Banks...
NC Coastal Guide Map
The waters off Cape Hatteras are often called the Graveyard of the Atlantic...
Kathryn Louise Wood Author Blog: January 2014
The Outer Banks is separated from mainland NC by Pamlico Sound, which is 15-30miles wide. Click on map to expand it, and press ESC key to return...


Brian's trips usually assemble at the Hatteras marina at 5:15am, and depart the dock around 5:30am, returning around 5pm.

Brian and Kate chum three items:  Menhaden oil dripped in the back of the ship to attract the birds (with a pinhole in the bottom of a plastic jug of the oil), a chunk of frozen chum consisting of ground up Menhaden dragged behind in a metal cage to hold the birds near the ship, and occasional sliced up shark liver pieces (each about 1/4 inch square) to hold the most special birds.

I always create a GPX track file for pelagic trips....

Route on 2015 May 20th. Note that this full round trip covered 115miles in 11.5 hours at sea....


Route on 2015 May 21st when first Trindade Petrel of the season was seen on this trip....

Here is the same map, but zoomed out. Notice the steep continental shelf slope at the SE end of our May 21 route (the light blue line)...

Nautical chart (depth shown in fathoms, where 1 fathom = 6 feet) for waters off Cape Hatteras (click to enlarge, ESC to return)...


TRINDADE / HERALD PETREL?
This was our #1 target bird, and is currently of great interest to seabirders & marine ornithologists.
How to classify this group of pterodroma?
Split Pterodroma heraldica and P. atrata from P. arminjoniana << a good discussion

What is the real ("common" / vernacular) name of Pterodroma arminjoniana?
Name & pronunciation of vernacular name for Pterodroma arminjoniana - Google Groups

Overview - Trindade Petrel (Pterodroma arminjoniana) - Neotropical Birds
Trindade Petrel (Pterodroma arminjoniana) | HBW Alive
Pterodroma arminjoniana (Herald Petrel, Trindade Petrel)
Trindade Petrel (Pterodroma arminjoniana) :: xeno-canto
Trindade petrel - Wikipedia, the free encyclopedia
Trindade Petrel (Pterodroma arminjoniana) - BirdLife species factsheet
Trindade petrel videos, photos and facts - Pterodroma arminjoniana | ARKive

Trindade / Herald Petrel (Pterodroma arminjoniana), photo by F.Mantlik on May 21, 2015... and see Frank's excellent photos at... Flickr - Photo Sharing!   This species breeds in only one or two Atlantic locations, primarily Trindade Island, Brazil, as far as we know.

Trindade Petrel (Michael Lanzone) on May 21, 2015....

Trindade Petrel (Michael Lanzone) on May 21, 2015....

Trindade Petrel (Bob Fogg) on May 24, 2015....



South Polar Skua (Michael Lanzone) on May 21, 2015....


Fea's Petrel (Bob Fogg) on May 23, 2015.

Fea's Petrel (David Shoch) on May 23, 2015...

Black-capped Petrel   (Michael Lanzone) on May 21, 2015...


Audubon's Shearwater  (Michael Lanzone) on May 21, 2015...


Bridled Tern  (Michael Lanzone) on May 21, 2015...

Arctic Tern (Michael Lanzone) on May 21, 2015. Compared with Common Tern, note the shorter bill, the shorter neck, the longer tail...


F.Mantlik with T.Robben at 5:15am on Brian Patteson's "Stormy Petrel 2", about to depart (T.Robben)....

The Stormy Petrel 2 on a calm morning, May 20, about 30 miles off of Hatteras (T.Robben from the pulpit)....

Although we were successful pelagically, we missed several "land birds" we also tried for, including Black Rail in NJ (we missed by one day), Wilson's Plover nesting at South Point (on 15-mile long Ocracoke Island, via a free one-hour ferry ride south from Hatteras), and Red-cockaded Woodpecker (we arrived too late in the day, as the sun was setting and the birds were probably inside the nest hole already).

DRAFT UNDER CONSTRUCTION:
Our round trip was 1,618 miles by car, May 18-23, 2015, including the following locations visited during the transit to and from Hatteras:

  • Brigantine NJ,
  • Heislerville NJ. About 20,000 shorebirds. Caspian Tern (1).
  • Stipsons Island Road, NJ, where we missed Black Rail. It did not call the evening we were there.
  • Eastern Shore of Virginia National Wildlife Refuge, VA. Summer Tanager (1 male), Blue Grosbeak (1male).
  • Pea Island NWR.
  • Ocracoke, South Point, NC. Reportedly breeding pair of Wilson's Plovers could not be found.
  • Palmetto-Peartree Preserve, NC. Red-cockaded Woodpecker. Breeding tree and hole found, but too late in evening for birds.


PRACTICAL MATTERS:
We used the very good Cape Pines Motel at 47497 Highway 12, Buxton, NC 27920 which is about 15-20 minutes drive away from the marina where the ship docks. They may provide a slight discount if you say you are taking a seabirding trip with Brian Patteson...
Cape Pines Motel, Hatteras Island, Outer Banks - Rates

Parts of these marine trips can be bumpy and some people should consider taking Bonine prior to their trip (late the night before the trip). Of course appropriate sleep and food are also important before these trips, etc.

POST MORTEM:
The trip was a deeply appreciated success. We went after three life-birds, the three irregular pteradromas at Hatteras (Trindade, Fea's and Bermuda petrels) and the first two of the three were seen and photographed. Trindade Petrel was #1 target and we got it! We also saw a good variety of the expected NC "southern pelagics". We were both very happy about the trip, although I recommend not doing what I did (exhausted myself with only 18hours sleep in four nights). Get plenty of sleep to enjoy these exciting trips fully.


TR and FM doing yoga on the beach at Cape Hatteras, NC   (-:
After a long cold snowy winter, the Spring wind was blowing and the temperature was perfect.



OCEANOGRAPHY & MARINE BIOLOGY of this area:

Off Cape Hatteras the continental shelf is narrow, the slope is very steep, and the Gulf Stream comes right into that area. These factors make seabirding in this area very interesting.

Depth contours (isobars) are in meters. Notice the very steep slope off Cape Hatteras.....


The continental shelf is very narrow off Cape Hatteras...

A good description of the oceanography off Cape Hatteras...

What is going on in the waters off Hatteras?
The water temperatures are changing, and this is impacting several aspects of the ocean.
This article/deck explores how 2012 ocean warming may be impacting Cape Hatteras waters....
This will probably be reflected in seabird distributions and movements. 
We need to figure out how these oceanographic changes may change seabird distributions, etc.
Currently thinking about that.

Where BBL is Benthic Boundary Layer:  Benthic boundary layer - Wikipedia, the free encyclopedia , 


More to come....