11 December 2014

Th 11 Dec 2014 survey

Th 11 Dec 2014


   I was joined today by Wil Christenson and Steve Moore for the ongoing Bulls Island waterfowl/shorebird survey. We joined the USF&WS maintenance crew, Greg and Alex, for a quick ride over to the island. There was ice on the deck of the boat as we climbed aboard for a bracing ride through the marshes. Once on the island we quickly warmed up and enjoyed beautiful, cool, sunny weather with light winds. The fall archery hunts for deer have concluded and the Coastal Expeditions Ferry is running regular service on Saturdays only, so Bulls Island in full refuge mode now. It was a pleasure being there knowing that so few other people were about.

   We tallied 47 species on the survey proper and 80 species on the day's outing. Our eBird checklist is appended, below, FYI. Upper Summerhouse Pond (USP) continues to impress. We estimated about 1300 waterfowl there with Gadwall, American Wigeon, Northern Shoveler, and Ruddy Ducks making up the bulk. Across the island White Ibis, Ruddy Duck, and Hooded Merganser species were in high counts. One large flight of Dunlin in the oceanfront marsh at Jack's Creek was estimated to be 1370 individuals. We also saw a pair of putative Norther Pintails, but never got an absolutely confirmatory look. Other avian sightings that we enjoyed included American Kestrel, Peregrine Falcon, a Worthington's form (subspecies, type, race?) Marsh Wren, and first-of-season (for me) Cedar Waxwings (sorry you missed those, Wil, they flew over Garris just after you drove off).

   While we were scoping the waterfowl on USP a Cooper's Hawk flew over at the same time that many of the ducks flushed. That left us wondering if a Cooper's Hawk would ever attempt to take waterfowl, i.e., did the waterfowl have reason to be wary of a Cooper's Hawk? Sprunt and Chamberlain (South Carolina Bird Life) relate incidents of Cooper's Hawks going after a Green Heron, a Ring-necked Duck on the wing (i.e., the duck on the wing), and a Clapper Rail…all  incidents reported from Bulls Island. So I suppose those ducks were well justified to be wary.

   Notable misses included Laughing Gull (really!) and Bald Eagle. Other species in low numbers included Western Sandpipers and Lesser Scaup. The North Beach was very quiet, bird wise, today; there have been few shorebirds there this entire calendar year in strong contrast to the previous two years when the shorebirds, gulls, and terns would gather there by the thousands. At least the shelling was pretty good on the North Beach.

   Non avian sightings include a few alligators (including "Gatorzilla"), a few bobcat tracks in the sand dunes, and two Fox Squirrels. After last week's deer hunt, we were pleased merely to see a few deer tracks.

   Looking ahead at the tide calendar suggests the following date for our next survey:

Sat 27 Dec 2014 high tide 5.4 ft at 11:53 AM

Stay tuned for final plans.



Cape Romain NWR--Bulls Island, Charleston, US-SC
Dec 11, 2014 8:00 AM - 3:00 PM
Protocol: Traveling
14.5 mile(s)
Comments:     Conducting the ongoing Bulls Island waterfowl/shorebird survey with Wil Christenson and Steve Moore. Effort: 4.15 mi  and 15 min by boat plus 9.1 mi and 2 hr by truck plus 1.25 mi and 4 hr 45 min by foot. Weather: very early high thin clouds (a 'mackerel sky') quickly clearing to fully sunny and cool; temps 28 F to 51 F; early winds NE shifting about 10 AM to NW then shifting about 12:30 to E, all <= 5 mph; barometer steady at 30.05 in Hg. Tide was forecast 5.1 ft high at 10:37 AM.  <br />Submitted from BirdLog NA for iOS, version 1.6.3
80 species

Gadwall  518     Most on Upper Summerhouse Pond. Estimate. Excellent scope views of most in ideal light.
American Wigeon  400
American Black Duck  7
Mottled Duck  4
Northern Shoveler  158     Most on Upper Summerhouse Pond. Excellent scope views in ideal light.
Green-winged Teal  35
Redhead  6
Lesser Scaup  20
Bufflehead  56     Widely scattered across the island.
Hooded Merganser  277     Mostly in several tight braces numbering 40 to 50.
Red-breasted Merganser  4
Ruddy Duck  299     A fairly accurate count.
Common Loon  1
Pied-billed Grebe  82     Widely scattered all over the island.
Horned Grebe  6
Wood Stork  7
Northern Gannet  2
Double-crested Cormorant  112
Anhinga  5
American White Pelican  37
Brown Pelican  18
American Bittern  1
Great Blue Heron  13
Great Egret  32
Snowy Egret  70     Most grouped in congregations along with Great Egrets, White Ibis, and other wading birds.
Little Blue Heron  3
Tricolored Heron  7
Black-crowned Night-Heron  25
White Ibis  178     One large congregation plus many widely dispersed individuals.
Glossy Ibis  2
Turkey Vulture  4
Osprey  3
Northern Harrier  2
Cooper's Hawk  2     One of these may have flushed many waterfowl under scope view.
Clapper Rail  5
Common Gallinule  23
American Coot  182
American Oystercatcher  1
Grey Plover  33
Semipalmated Plover  220
Piping Plover  1     No apparent leg bands or flags.
Spotted Sandpiper  1
Greater Yellowlegs  14
Willet  29
Marbled Godwit  1
Ruddy Turnstone  70     A fairly accurate count.
Sanderling  64     A fairly accurate estimate.
Dunlin  1373     All but 3 individuals in one resting flight. I counted individuals in one scope view then multiplied by the number of scope fields that the flight filled.
Western Sandpiper  3
Short-billed Dowitcher  13
Wilson's Snipe  1
Bonaparte's Gull  3
Ring-billed Gull  14
Herring Gull  10
Forster's Tern  29
Mourning Dove  25
Belted Kingfisher  5
Red-bellied Woodpecker  1
Yellow-bellied Sapsucker  2
Northern Flicker (Yellow-shafted)  2
American Kestrel  1     1 male.
Peregrine Falcon  1
Eastern Phoebe  3
Tufted Titmouse  1
Marsh Wren  1     1 Worthington's.
Carolina Wren  2
Ruby-crowned Kinglet  1
American Robin  6
Grey Catbird  2
Northern Mockingbird  3
Cedar Waxwing  15
Palm Warbler  1
Yellow-rumped Warbler (Myrtle)  20
Swamp Sparrow  2
Northern Cardinal  5
Red-winged Blackbird  6
Eastern Meadowlark  1
Common Grackle  8
Boat-tailed Grackle  10
American Goldfinch  4

View this checklist online at http://ebird.org/ebird/view/checklist?subID=S20864852

This report was generated automatically by eBird v3 (http://ebird.org)

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