Subject flagged and color-banded Dunlin, Western Sandpipers

By Judy Robertson,2014-05-06 16:22
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Subject flagged and color-banded Dunlin, Western Sandpipers

    Arctic Shorebird Demographic Network

    Color-marked Shorebird Resighting Report

    The Arctic Shorebird Demographic Network (ASDN) is an international collaboration between shorebird biologists who are currently conducting a multi-year study to examine mechanisms behind declines of North American Arctic- breeding shorebirds. The Network collaborators’ are

    color-marking shorebirds at 7 sites in Alaska (Yukon Delta, Nome, Cape Krusenstern, Point Barrow, Ikpikpuk River, Prudhoe Bay and the Canning River) and 4 sites in Canada (Mackenzie Delta, East Bay and Coates Island in the northern portion of Hudson Bay, and Churchill).

    We would be delighted to receive reports of color-marked shorebirds observed away from the breeding grounds. Please look for marked birds of the following species and fill out the following resighting report:

     American Golden-plover Pluvialis dominica

     Semipalmated Plover Charadrius semipalmatus

     Bar-tailed Godwits Limosa lapponica

     Whimbrel Numenius phaeopus

     Ruddy Turnstone Arenaria interpres

     Dunlin Calidris alpina

     Western Sandpiper Calidris mauri

     Semipalmated Sandpiper Calidris pusilla

     Stilt Sandpiper Calidris himantopus

     Pectoral Sandpiper Calidris melanotos

     Long-billed Dowitcher Limnodromus scolopaceus

     Red Phalarope Phalaropus fulicarius

     Red-necked Phalarope Phalaropus lobatus

    All ASDN birds are marked with a white (Canada) or dark green (USA) flag and a color band. The engraved flags will have a 3 letter code of letters or numbers, written in white on the green flags or written in black on the white flags, and an additional color band (e.g. red, dark blue, orange, dark green, yellow) below the flag. Most birds will also have three unique color bands on the opposite leg to further facilitate individual identification during the breeding season, as well as a US Geological Survey/Canadian Wildlife Service metal band with a unique serial number.

Inquires about the Arctic Shorebird Demographics

    Network can be directed to:

    River Gates, Network Field Coordinator,

    US Fish and Wildlife Service, Migratory Bird


    1011 East Tudor Rd. MS201

    Anchorage, Alaska, USA

    (907) 786-3563.

    Dunlin (Calidris alpina arcticola) color-banded

    in Barrow, Alaska and resighted at Shimominota

    Beach, Suzuka City, Japan on 20 January 2009.

    Resighting Report Form

Please submit your report via email to

    Observer name:____________________________ email:______________________________

    Date of observation:___________________________ (circle one: approximate or actual date?)

    GPS Location Format (circle one): Latitude _____________________________ Decimal degrees (example: 71.26373N -156.53105 W) Longitude ___________________________ Degrees minutes seconds (example: N71? 15’ 49’’ W156? 31’ 51’’) Degrees, decimal minutes (example. N71? 15.8237999 W156? 31.862999)

    Location description:___________________________________________________________ (For example: Salton Sea, southern California be as specific as possible)

    Species observed: ___________________________________

Status of bird (circle one): alive dead Metal bandnumber:_________________________

Colors codes:

    red (r) dark green (dg) light blue (lb) metal (m)

    orange (o) light green (lg) gray (gy)

    yellow (y) dark blue (db) white (w)

Flag codes:

    white flag blank (wf) green flag blank (gf)

    green flag engraved (gfe) white flag engraved (wfe)

Description of marking (see below example):

     Upper left leg:_____________________________________________________

     Lower left leg:_____________________________________________________

     Upper right leg:____________________________________________________

     Lower right leg:____________________________________________________

    Example of how to report color banded and flagged shorebirds. Colors

    are read from top to bottom, bird’s left to the bird’s right.

     Upper Left (UL) = green flag, alpha code= CLM, red

     Lower Left (LL) = metal band

     Upper Right (UR) = no bands

     Lower Right (LR) = yellow, orange, red

    Questionable parts of your resighting can be indicated with a “?”.

    Photo taken and submitted (circle one): yes or no

Observer confidence (circle one, see details below) 5 4 3 2 1

Observer Confidence Scale:

    5: High confidence: Able to clearly read flag code and distinguish color band combination, confident of species identification. Verified by picture.

    4: Moderately-high confidence: Able to read flag code and/or colors combo after a few attempts, mostly confident of the flag code and/or color combo, confident of species identification. Picture taken but does not verify the individual identification. 3: Moderate confidence: Able to read most of flag code and colors combination, not 100% sure of location of bands, alpha-code or color combos.

    2: Moderately low confidence: Able to see that the bird was marked and see some of the flag code or color combo. Not able to confirm flag code or color combo. Confident in species identification.

    1: Low confidence: Able to see that the bird was marked but could only read some of the alpha coded flag and/or color combo. Not certain of the species identification.

Observation description:


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