Everything about The Swallow-tailed Gull totally explained
The
Swallow-tailed Gull (
Creagrus furcatus) is an equatorial
seabird in the
gull family Laridae. The species is
endemic to the
Galápagos Islands. When it isn't breeding it's totally
pelagic (flying and hunting over the open oceans), migrating eastward to the coasts of
Ecuador and
Peru. A notable aspect of the swallow-tailed gulls are the fleshy red rims around the eyes; it's speculated that these may aid its noctural vision.
It is unique within the gulls for feeding exclusively
at night (Harris 1970), feeding mostly on
squid. It breeds
colonially throughout the year; unlike most other gull species it lays a single egg per breeding attempt (Agreda & Anderson 2003) .
A type of fish that glows can be seen from above the water, making it easy for the Swallow-tailed Gull to see and attack it at night.
Gallery
Image:Swallow-tail gull (Creagrus furcatus) -Espanola -Punta Suarez.jpg|On rocky ground, Galápagos Islands
Image:Creagrus_furcatus_flight.jpg|Flying, Galápagos Islands
Image:Swallow-tailed Gull (Creagrus furcatus) -side upper body.jpg|Close-up of head and neck
Further Information
Get more info on 'Swallow-tailed Gull'.
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