Settings:
-------------
Camera: Nikon D40
Exposure: 0.006 sec (1/160)
Aperture: f/4.0
Focal Length: 50 mm
ISO Speed: 720
Exposure Bias: 0 EV
Flash: No Flash
Tuesday, December 29, 2009
Monday, December 14, 2009
Heron at Thol Lake
Settings:
Camera: Nikon D40
Exposure: 0.001 sec (1/2000)
Aperture: f/6.3
Focal Length: 200 mm
ISO Speed: 200
Exposure Bias: -2/3 EV
Flash: No Flash
About Heron (Wikipedia):
The herons are wading birds in the Ardeidae family. There are 64 recognised species in this family. Some are called egrets or bitterns instead of herons. Within the family, all members of the genera Botaurus and Ixobrychus are referred to as bitterns, and - including the Zigzag Heron or Zigzag Bittern - are a monophyletic group within the Ardeidae. However, egrets are not a biologically distinct group from the herons, and tend to be named differently because they are mainly white and/or have decorative plumes. Although egrets have the same build as the larger herons, they tend to be smaller.
The classification of the individual heron/egret species is fraught with difficulty, and there is still no clear consensus about the correct placement of many species into either of the two major genera, Ardea and Egretta. Similarly, the relationship of the genera in the family is not completely resolved. However, one species formerly considered to constitute a separate monotypic family Cochlearidae, the Boat-billed Heron, is now regarded as a member of the Ardeidae.
Although herons resemble birds in some other families, such as the storks, ibises and spoonbills, they differ from these in flying with their necks retracted, not outstretched. They are also one of the bird groups that have powder down. Some members of this group nest colonially in trees; others, notably the bitterns, use reedbeds.
Camera: Nikon D40
Exposure: 0.001 sec (1/2000)
Aperture: f/6.3
Focal Length: 200 mm
ISO Speed: 200
Exposure Bias: -2/3 EV
Flash: No Flash
About Heron (Wikipedia):
The herons are wading birds in the Ardeidae family. There are 64 recognised species in this family. Some are called egrets or bitterns instead of herons. Within the family, all members of the genera Botaurus and Ixobrychus are referred to as bitterns, and - including the Zigzag Heron or Zigzag Bittern - are a monophyletic group within the Ardeidae. However, egrets are not a biologically distinct group from the herons, and tend to be named differently because they are mainly white and/or have decorative plumes. Although egrets have the same build as the larger herons, they tend to be smaller.
The classification of the individual heron/egret species is fraught with difficulty, and there is still no clear consensus about the correct placement of many species into either of the two major genera, Ardea and Egretta. Similarly, the relationship of the genera in the family is not completely resolved. However, one species formerly considered to constitute a separate monotypic family Cochlearidae, the Boat-billed Heron, is now regarded as a member of the Ardeidae.
Although herons resemble birds in some other families, such as the storks, ibises and spoonbills, they differ from these in flying with their necks retracted, not outstretched. They are also one of the bird groups that have powder down. Some members of this group nest colonially in trees; others, notably the bitterns, use reedbeds.
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