last updated

04 jan 2014

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Swallow-tailed gull

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Swallow-tailed Gull Creagus furcatus, these gulls forage and feed their chicks during the night.
In order to guide the chicks to the adult's bill, it's bill has an illuminating tip while it also has an
illuminating white spot at the base of the bill. In order to persuade the adult to regurgitate food
the chick ticks against the bill. March 1975, Galapagos Islands.

Swallow-tailed Gull Creagus furcatus note illuminating spots March1975Galapagos Islands.jpg

Swallow-tailed Gull Creagus furcatus note illuminating spots March 1975 Galapagos Islands


Swallow-tailed Gull Creagus furcatus ad head March1975Galapagos Islands.jpg

Swallow-tailed Gull Creagus furcatus ad head March 1975 Galapagos Islands


Swallow-tailed Gull Creagus furcatus ad head March1975Galapagos Islands.jpg

Swallow-tailed Gull Creagus furcatus ad head March 1975 Galapagos Islands


Swallow-tailed Gull Creagus furcatus ad March1975Galapagos Islands.jpg

Swallow-tailed Gull Creagus furcatus ad March 1975 Galapagos Islands


Swallow-tailed Gull Creagus furcatus juv March1975Galapagos Islands.jpg

Swallow-tailed Gull Creagus furcatus juv March 1975 Galapagos Islands


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