Donald M. Jones / Willow Ptarmigan (Lagopus lagopus) trio in fall, transitioning to winter plummage, central Alaska
00429805
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00590984
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, browsing on Willow (Salix sp) buds, Alberta, Canada
00590982
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, Alberta, Canada
00570248
Donald M. Jones / American Goldfinch (Carduelis tristis) in winter plumage, Troy, Montana
01557824
Gerrit Vyn / Broad-billed Sandpiper (Limicola falcinellus) in basic plumage. Nan Thar Island, Rakhine State, Myanmar. January.
01538562
Gerrit Vyn / Red-necked Stint (Calidris ruficollis) in basic plumage, Rudong, China, October
01538502
Gerrit Vyn / Curlew Sandpiper (Calidris ferruginea) in basic plumage, foraging on mud flat, Rakhine State, Myanmar 2012
01538564
Gerrit Vyn / Broad-billed Sandpiper (Limicola falcinellus) in basic plumage, foraging on mud flats, Rudong, China, October.
01538631
Gerrit Vyn / Broad-billed Sandpiper (Limicola falcinellus) in basic plumage foraging on tidal mud flat, Nan Thar Island, Rakhine State, Myanmar.
01538630
Gerrit Vyn / Broad-billed Sandpiper (Limicola falcinellus) in basic plumage foraging on tidal mud flat, Nan Thar Island, Rakhine State, Myanmar.
01538629
Gerrit Vyn / Broad-billed Sandpiper (Limicola falcinellus) in basic plumage foraging on tidal mud flat, Nan Thar Island, Rakhine State, Myanmar.
00560516
Sebastian Kennerknecht / Forster's Tern (Sterna forsteri), Elkhorn Slough, Monterey Bay, California
00558289
Donald M. Jones / Willow Ptarmigan (Lagopus lagopus) in fall in transitioning to winter plumage central Alaska
00558286
Donald M. Jones / Willow Ptarmigan (Lagopus lagopus) in fall, transitioning to winter plummage, central Alaska
01525034
Gerrit Vyn / Flock of Marbled Godwits (Limosa fedoa) in basic (winter) plumage roosting on a dock. Pacific County, Washinton, USA. August.
01523618
Gerrit Vyn / Flock of Black-bellied plover (Pluvialis squatarola) in basic (winter) plumage roosting on coastal rocks. Monterey County, California, USA. December.
01523616
Gerrit Vyn / Black-bellied plover (Pluvialis squatarola) in basic (winter) plumage roosting on coastal rocks. Monterey County, California, USA. December.
01523615
Gerrit Vyn / Black-bellied plover (Pluvialis squatarola) in basic (winter) plumage roosting on coastal rocks. Monterey County, California, USA. December.
01523732
Gerrit Vyn / Red knot (Calidris canutus) in basic (winter) plumage foraging on the Altamaha Estuary. Glynn County, Georgia. October.
01523642
Gerrit Vyn / Bar-tailed godwit (Limosa lapponica) in basic plumage on coastal mudflats during its long distance migration. Rakhine State, Myanmar. January.
00545038
Winfried Wisniewski / Rock Ptarmigan (Lagopus muta) male in winter plumage, Snaefellsnes Peninsula, Iceland
00538138
Filippo Nucifora / Rock Ptarmigan (Lagopus muta) male calling, Switzerland
00517909
Michael Quinton / White-tailed Ptarmigan (Lagopus leucura) camouflaged in snow, Alaska
00498092
Scott Leslie / Chestnut-sided Warbler (Setophaga pensylvanica) sub-adult in winter, Canada
01377496
Gerrit Vyn / Forster's tern (Sterna forsteri) in basic plumage, Malheur County, Oregon, USA September
01377529
Gerrit Vyn / Long tailed ducks (Clangula hyemalis) male and female flock on water in basic (winter) plumage. Ocean County, New Jersey, USA January
01377446
Gerrit Vyn / Brown pelican (Pelecanus occidentalis) adult in basic (winter) plumage roosting on a piling, Cameron Parrish, Louisiana, USA. December
00462487
Michael Quinton / Willow Ptarmigan (Lagopus lagopus) in winter plumage camouflaged in snow, Alaska
00462486
Michael Quinton / Willow Ptarmigan (Lagopus lagopus) pair in winter plumage camouflaged in snow, Alaska
00462485
Michael Quinton / Willow Ptarmigan (Lagopus lagopus) in winter plumage, Alaska
00455945
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage in snow, Bow Summit, Alberta, Canada
00455943
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage in snow foraging, Bow Summit, Alberta, Canada
00455941
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, Glacier National Park, Montana
00455939
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) group in winter plumage on mountain side, Glacier National Park, Montana
00455938
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, Glacier National Park, Montana
00455935
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, Glacier National Park, Montana
00455934
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, Glacier National Park, Montana
00455933
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage, Glacier National Park, Montana
00455931
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage on mountain side, Glacier National Park, Montana
00455929
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) group in winter plumage on mountain side, Glacier National Park, Montana
00455942
Donald M. Jones / White-tailed Ptarmigan (Lagopus leucura) in winter plumage in snow, Bow Summit, Alberta, Canada
Sebastian Kennerknecht / Brandt's Cormorant (Phalacrocorax penicillatus), Big Sur, California
00442984
Sebastian Kennerknecht / Brandt's Cormorant (Phalacrocorax penicillatus), Big Sur, California
00442973
Sebastian Kennerknecht / Black Turnstone (Arenaria melanocephala) in intertidal zone, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
01265448
Gerrit Vyn / Adult Black Turnstone (Arenaria melanocephala) in basic (winter) plumage. Monterey County, California, USA, October.
01265446
Gerrit Vyn / Flock of Marbled Godwits (Limosa fedoa) in basic (winter) plumage roosting on a dock. Pacific County, Washington, USA, August.
00439351
Sebastian Kennerknecht / Pacific Golden-Plover (Pluvialis fulva) on intertidal rocks, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439347
Sebastian Kennerknecht / Pacific Golden-Plover (Pluvialis fulva) on intertidal rocks at sunset, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439349
Sebastian Kennerknecht / Pacific Golden-Plover (Pluvialis fulva) foraging in intertidal rocks at sunset, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439346
Sebastian Kennerknecht / Pacific Golden-Plover (Pluvialis fulva), Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439345
Sebastian Kennerknecht / Pacific Golden-Plover (Pluvialis fulva) resting, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439343
Sebastian Kennerknecht / Black Turnstone (Arenaria melanocephala) foraging for invertebrates in intertidal rocks, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439342
Sebastian Kennerknecht / Surfbird (Aphriza virgata) on intertidal rocks, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439338
Sebastian Kennerknecht / Red-necked Phalarope (Phalaropus lobatus) standing in shallow water, Natural Bridges State Beach, Santa Cruz, Monterey Bay, California
00439334
Sebastian Kennerknecht / Western Sandpiper (Calidris mauri) flock flying, Pajaro Dunes, Monterey Bay, California
00439333
Sebastian Kennerknecht / Western Sandpiper (Calidris mauri) flock flying, Pajaro Dunes, Monterey Bay, California
00439335
Sebastian Kennerknecht / Heermann's Gull (Larus heermanni) flying, Monterey Bay, California
00439337
Sebastian Kennerknecht / California Gull (Larus californicus) juvenile, first winter plumage, flying, Monterey Bay, California
00439336
Sebastian Kennerknecht / Pomarine Jaeger (Stercorarius pomarinus) flying, Monterey Bay, California
00439332
Sebastian Kennerknecht / Western Sandpiper (Calidris mauri) on beach, Pajaro Dunes, Monterey Bay, California
00439306
Sebastian Kennerknecht / Double-crested Cormorant (Phalacrocorax auritus) drying wings, Santa Cruz, Monterey Bay, California
00429803
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429800
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429799
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429795
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429794
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429793
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429791
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429790
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429789
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429787
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429786
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429785
Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) in winter plumage on beach, Point Reyes National Seashore, California
00429777
Sebastian Kennerknecht / Great Egret (Ardea alba) standing on kelp bed hunting, Santa Cruz, Monterey Bay, California
00429770
Sebastian Kennerknecht / Elegant Tern (Thalasseus elegans) diving for fish, Elkhorn Slough, Monterey Bay, California
00429769
Sebastian Kennerknecht / Elegant Tern (Thalasseus elegans) foraging, Elkhorn Slough, Monterey Bay, California
00429762
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile on rocks, Santa Cruz, Monterey Bay, California
00429766
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) on contaminated water sign, Santa Cruz, Monterey Bay, California
00429764
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis), Santa Cruz, Monterey Bay, California
00429763
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) preening, Santa Cruz, Monterey Bay, California
00429761
Sebastian Kennerknecht / Willet (Tringa semipalmata), Santa Cruz, Monterey Bay, California
00429758
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile flying, Santa Cruz, Monterey Bay, California
00429760
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile, Santa Cruz, Monterey Bay, California
00429757
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile starting a dive to catch fish, Santa Cruz, Monterey Bay, California
00429756
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile flying, Santa Cruz, Monterey Bay, California
00429755
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile flying, Santa Cruz, Monterey Bay, California
00429754
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile starting a dive to catch fish, Santa Cruz, Monterey Bay, California
00429753
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile flying, Santa Cruz, Monterey Bay, California
00429752
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile and Heermann's Gulls (Larus heermanni) fighting over anchovy, Santa Cruz, Monterey Bay, California
00429750
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile standing in lagoon, Santa Cruz, Monterey Bay, California
00429751
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile standing in lagoon, Santa Cruz, Monterey Bay, California
00429749
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile swimming in lagoon, Santa Cruz, Monterey Bay, California
00429748
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile tossing plastic spoon up in the air, Santa Cruz, Monterey Bay, California
00429747
Sebastian Kennerknecht / Brown Pelican (Pelecanus occidentalis) juvenile with plastic spoon in bill, Santa Cruz, Monterey Bay, California