<< Previous Next >>

Swallow-tailed gull

Swallow-tailed gull
Photo Information
Copyright: ronny hole (ronnyho) Silver Star Critiquer/Gold Note Writer [C: 16 W: 0 N: 80] (556)
Genre: Animals
Medium: Color
Date Taken: 2010-12-22
Categories: Birds
Camera: Canon 7D, Canon EF400mm f/5.6L USM
Exposure: f/5.6, 1/1000 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2011-01-23 8:03
Viewed: 4040
Points: 2
[Note Guidelines] Photographer's Note
The Swallow-tailed gull (Larus furcatus) is unlike most other gulls in many ways. First,it is the world's only nocturnal, truly oceanic gull. At dusk, it flies many kilometeres out to sea to feed. To aid them in their nocturnal foraging, these gulls possess more rods than cones in their eyes' retinas (to pick up black and white contrast as opposed to colour). They allso relay on the natural bioluminescent light given by their favourite prey - squid. They will nest on sand or lava, but their preferred nesting habitat is seacliff. To prevent themselves crashing into the cliff walls on their return in darkness, they utter clicking vocalisation, thought to be a form of primitive echo-location, similar to that of bats.

It is one of only two species of gull to breed in the archipelago, and is restricted to Galapagos apart from a few breeding pairs on Malpelo Island (Colombia).

Hope you like my in-flight presentation from Espanola Island.

tcr has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
You must be logged in to start a discussion.

Critiques [Translate]

  • Great 
  • tcr Gold Star Critiquer/Gold Note Writer [C: 158 W: 8 N: 538] (3384)
  • [2011-01-23 9:36]

You got the whole gull well focused. The diagonal composition works very well. Well done.

Calibration Check