|
|
|
General Information |
Gull Identification |
Immature Gulls |
Key to Adult Gulls |
Species List | |
Glaucous-winged Gull (similar
species)
|
|
|
|
 |
Breeding Adult - brown eyes;
Head and bill appear smaller
than the similar Herring Gull.
Photo by Jack Binch
©Jack Binch
|
|
|
|
|
|
 |
Non-breeding Adult - has much gray-brown mottling on the head, neck, and
chest;
and more extensive mottling than in Western Gulls
by Pomera M. Fronce
©Pomera M. Fronce
|
|
|
|
 |
1st Winter - black bill, paler mottling than Western, and pink legs
by Rick Fridell ©Rick
Fridell
|
|
 |
1st Winter - primaries are very pale gray-buff, becoming whitish at the
tips.
by Rick Fridell ©Rick
Fridell
|
|
2nd Winter - may be very whitish. gray mantle color begins to
appear;
wing coverts, head, breast and tail are mottled grayish-buff; bill less
black at base
by Milt Moody
©Milton G. Moody
|
|
|
Glaucous-winged
Gull
|
Similar Species
|
|
Western
Gull
- Glaucous-winged Gulls are similar to Western Gulls in all plumages but
are paler; the wing tips are never blackish;
adult Glaucous-winged Gulls show more mottling on head, neck, and chest in
winter and have a darker mantle and primaries than the
Westerns. Intergrades
between Western and Glaucous-winged numerous in Pacific
North west. |
|
Thayer's
Gulls - are usually
smaller, with smaller, thinner bill and slightly darker wing
tips; however; Glaucous-winged intergrades have darker
primaries like Thayer's. Immature Glaucous-winged are "smudgier-looking" overall than Thayer's at rest;
the primaries are the same color
as or slightly paler than rest of wing, not slightly darker
as in Thayer's |
|
Glaucous Gulls
- are heavier and have whiter primaries than Glaucous-winged
Gulls;
Immature Glaucous Gulls have black bill tips that are sharply cut off from
pinkish to flesh-colored basal two-thirds of bill. |
|
 |
Adult Western - has a darker mantle and
primaries with blackish wing tips.
Photo
by Joel Beyer
©Joel Beyer
|
|
 |
Adult Thayer's
- usually smaller, with smaller, thinner bill and slightly
darker wing tips
by Jack Binch
©Jack Binch
|
|
 |
1st Year Thayer's
- Immature Glaucous-winged are smudgier
overall than Thayer's especially at rest.
by Richard Young
©Richard B. Young
|
|
 |
1st Winter Glaucous Gull - is heavier with
whiter primaries,
Immature with sharply defined black tip of bill.
Photo
by Paul Higgins
©Paul Higgins
|
|
|
|
