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| Jeff Poklen | profile | all galleries >> Gulls >> Large White-headed Gull Comparisons, California Central Coast | tree view | thumbnails | slideshow |
 Western Gull (front) with 1st cycle Glaucous Gull |
 Herring Gulls, both 1st cycle |
 front to rear: adult Herring Gull, 1st cy Herring Gull, adult Western Gull |
 Thayer's Gull (rear) with Herring Gull, both 1st cycle |
 California Gull (front) with Thayer's Gull, both 1st cycle |
 Front to rear: cy1 GW x HERG, cy1 Thayer's Gull, cy2 Glaucous-winged Gull |
 Left to right: cy1 Thayer's Gull, presumed cy1 Glaucous-winged x Western Gull, 1st cycle |
 Left to right: adult Western Gull, 1st cycle Thayer's Gull |
 Left to right: 3rd cycle & 2nd cycle Herring Gulls |
 Front to rear: cy2 Herring Gull, with probable cy3 GW x WEGU |
 presumed GW x HERG (left) & GWGU, both 1st cycle |
 Thayer's Iceland Gull, adult center. From top to bottom: Western, Thayer's, Glaucous-winged, all basic adults |
 Thayer's Iceland Gull (right) with presumed Glaucous-winged x Western Gull, both basic adults |
 pale-eyed Western gull, 2nd cycle with adult Herring Gull |
 Front to rear: presumed adult GW x WEGU with presumed cy2 GW x HERG |
 presumed GW x WEGU (left) with WEGU, both basic adult |
 left to right: GW x HERG, GWGU, GW x WEGU, all adults |
 front to rear: 1st cy GWGU, 1st cy THGU, adult WEGU |
 GW x WEGU (left) with GWGUs & WEGUs |
 Herring Gull (center & lower left) with HERGs & THGUs all adults |
 Herring Gull (front) with THGU, both adults |
 Thayer's Gull (center) with Herring Gulls, all adults |
 Thayer's Gull or Herring Gull adult? |
 Western Gulls with with presumed Herring Gull (right) |
 Glaucous-winged Gulls: 2nd cycle (left), 1st cycle (right) |
 possible Kumlien's Iceland Gull, 1st cy (center) |
 Primary patterns of 3 adult Thayer's Iceland Gulls |
 Dorsal primary patterns of adult Herring and Thayer's Iceland Gulls - P10 on HERG not fully grown |