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Taken 7-Feb-11
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21 of 48 photos
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Categories & Keywords

Category:Animals
Subcategory:Birds
Subcategory Detail:
Keywords:Boulders Beach, Cape Gull, Cape Peninsula, Larus dominicanus vetula, South Africa, Southern Black Backed Gull
Photo Info

Dimensions2048 x 1365
Original file size1.66 MB
Image typeJPEG
Color spaceProPhoto RGB
Date taken8-Feb-11 03:49
Date modified9-Nov-14 15:54
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS 5D Mark II
Focal length400 mm
Max lens aperturef/5.7
Exposure1/4000 at f/5.6
FlashNot fired, compulsory mode
Exposure bias-1/3 EV
Exposure modeAuto
Exposure prog.Aperture priority
ISO speedISO 200
Metering modePattern
Cape Gull (Larus dominicanus vetula)

Cape Gull (Larus dominicanus vetula)

Cape Gull or Southern Black Backed Gull (Larus dominicanus vetula)

24 inches long.

Breeds on coasts and islands through much of the southern hemisphere. Cape gull is a subspecies of Southern Black Backed Gull that has dark eye and white tail, rather than the light eye and black tail.

Omnivores, and they will scavenge as well as seeking suitable small prey. It gathers on landfills and a sharp increase in its population is therefore considered as an indicator for a degraded environment. They have been observed feeding on live right whales since at least 1996. The cape gull uses its powerful beak to peck down centimetres into the skin and blubber, often leaving the whales with large open sores, some of which have been observed to be half a meter in diameter. This predatory behavior has been continually documented in Argentinian waters, and continues today. At rocky sites along the southern African coast, such as at Boulders Beach in Cape Town, can be seen picking up shellfish and repeatedly flying up several meters and dropping them onto the rocks below in order to break them open.

The nest is a shallow depression on the ground lined with vegetation and feathers. Nest colonially. The female usually lays 2 or 3 eggs. Both parents feed the young birds.