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General Information |
Gull Identification |
Immature Gulls |
Key to Adult Gulls |
Species List | |
Heermann's Gull (similar
species)
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Breeding Adult - red bill, white head, gray body, black
tail
Photo Margaret T. Sanchez
©Margaret T. Sanchez
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Non-breeding Adult - red bill with prominent black tip, streaked head
by Joel Beyer
©Joel Beyer
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1st Year (on right) - dark-tipped flesh-colored bill, dark chocolate
brown plumage
by Eric Jeffords
©Eric Jeffords
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2nd Spring - white tips on seconaries and tertials more red
on bill than 1st year
by Rick Fridell
©Rick Fridell
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2nd Winter (on left) - like non-breeding adult but bill is more
orange,
plumage browner in tone; some show white in primary-coverts
by Eric Jeffords
©Eric Jeffords
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Heermann's Gull
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Similar Species
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California Gull-
The dark first-year immatures of Callifornia and other gulls
are more mottled on the mantle and underparts. |
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1st
winter California
- and other immature gulls
have a much more mottled mantle and underparts
Photo
by Paul Higgins ©Paul
Higgins
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Juvenile California - the
scaly pattern on the mantle is much more
sharp, fine and prominent than juvenile Heermann's.
Heermann's has pale base of bill.
by Lu Giddings ©Lu Giddings
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