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Young Ruff


Young Ruff
Photo Information
Copyright: Pekka Valo (pekkavalo1) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 423 W: 54 N: 2120] (6789)
Genre: Animals
Medium: Color
Date Taken: 2008-08-26
Categories: Birds
Camera: Canon EOS 1D Mark III, Canon EF 400mm f4.0 DO IS USM, RAW ISO 800, Canon EF 2x Extender II
Exposure: f/10.0, 1/400 seconds
Photo Version: Original Version
Date Submitted: 2008-08-31 2:22
Viewed: 4104
Points: 26
[Note Guidelines] Photographer's Note
A juvenile Ruff feeding at Yyteri mudflats in the West coast of Finland.

From Wikipedia, the free encyclopedia:

The Ruff (Philomachus pugnax) is a medium-sized wader. It is usually considered the only member of its genus Philomachus, but more recent research indicates that the Broad-billed and Sharp-tailed Sandpiper may belong there too.

Their breeding habitat is bogs, marshes and wet meadows with short vegetation in northern Europe and Russia. Ruff are migratory, wintering in southern and western Europe, Africa and India. They are highly gregarious, with a wintering flock of 1 million birds reported in Senegal. This species is a rare migrant to North America, but has nested (but is not known to have hatched eggs) in Alaska.
These birds nest in a well-hidden location on the ground, laying 3-4 eggs. The males display at a lek during the breeding season, standing erect, crouching or taking a variety of postures with the ruff erected. They may jump into the air. They are silent while displaying and when not breeding. These birds forage in wet grassland and soft mud, probing or picking up food by sight. They mainly eat insects and earthworms.
The Ruff is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.

Description
Ruffs have a distinctive "gravy boat" appearance, with a small head and medium bill, longish neck and pot-bellied profile. Males are larger than females. They have longish usually yellowish legs, and show white ovals on the tail sides in flight. Males are 29-32 cm long with a 54-60 cm wingspan. Breeding males grow the most individually distinctive breeding plumages of any wild bird, and recognize each other as individuals by plumage differences. They can have black, chestnut or white "neck ruffs" and "head tufts", made up of solid, barred or irregularly colored feathers (see images below). Their backs are grey-brown and the underparts white except for the black breast.

Females, also called reeves, are 22-26 cm long with a 46-49 cm wingspan. They are grey-brown above and white below. Females nest alone and provide all parental care. In winter, both sexes are a paler grey above and white below and can be differentiated only by size. Young birds have browner more scaly upperparts and are buffy below.

Breeding behaviour
There are two main behavioral types of males (but see end of article), which are fixed by a simple genetic polymorphism: territorial ("resident") and satellite males. These types can be distinguished by their appearance and behaviour: Resident or independent males (84%) have intensely-colored ruffs (black or chestnut) and stake out and occupy small (ca. 1x1 m) mating territories in the lek. They actively court females and display a high degree of aggression towards other resident males. Satellite males (16%) have light (white or mottled) ruffs and do not occupy own territories, but rather use those occupied by resident males and attempt to mate with females that visit the territory.

The relationship between resident and satellite males can be described as an uneasy alliance, which persists because having both kinds of males on a territory appears to attract additional females to that territory. This encourages partial cooperation between the two males, but they remain competitors to mate with visiting females.
Notably, while satellite males are on average slightly smaller and lighter, the nutrition of the chicks does not influence mating strategy, but rather, the inherited mating strategy heavily influences body size: Resident-type chicks will, if provided with the same amount of food, grow heavier than satellite-type chicks. Therefore, the mating strategies constitute an environmentally stable simple polymorphism.
Moreover, the genetic locus relevant for the mating strategy is located on an autosome. That means that both sexes carry 2 alleles, not only males (whereas mammalian males have the gonosomes XY and females have XX, in birds it is the other way around, males having the gonosomes ZZ and females WZ. W, X, Y and Z are technical terms, with X- and Z-chromosomes or Y- and W-chromosomes being analogous in male- and female-determining heterogame systems, respectively). If ruff females (which are always non-territorial) are given testosterone implants, they display the male territorial behaviour according to their genotype.
In 2006, a third type of male was described: permanent female mimics, the first such reported for birds. About 1 in 100 males are small, intermediate in size between males and females, and do not grow the elaborate breeding plumages of territorial and satellite males. These "female mimics" apparently obtain access to mating territories together with females, and then "steal" matings when females crouch to solicit matings.

Seabird, elizabeth, Argus, siggi, jaycee, jusninasirun, uleko has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To joey: Mudpekkavalo1 4 08-31 13:48
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Critiques [Translate]

Hi, Pekka,

very beautiful with a peaceful atmosphere. great details and composition. tfs.

chrs,
Man Yee

Excellent image with good contrasts, colour saturation and composition. Beautifully sharp too.

TFS
Cheers
Elizabeth

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2008-08-31 4:15]

Hello Pekka,
A great capture of a juvenile Ruff feeding. The technical aspects of this image are superb and the low POV excellent with excellent ligt management.
TFS this fine image,
Regards, Ivan

  • Great 
  • siggi Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3097 W: 109 N: 12399] (52850)
  • [2008-08-31 4:50]

Beautiful shot, Pekka.
The POV is great on this bird. The sharpness is impressive.
I love the light, and the colors in the water.
Regards Siggi

  • Great 
  • jaycee Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2454 W: 10 N: 8044] (25460)
  • [2008-08-31 9:30]

Hi Pekka,

Another beauty in your series of water birds. None here so I love seeing them. I love the pose - looks like he is hunting for food. Wonderful natural colors and great details of the face and plummage.

Jane

Hello Pekka. Another flawless image from your post. I like the sharp detail and vivid beauty of this bird. Very good framing with the plant floating on the surface. Well done and best regards. Jusni

  • Great 
  • PeterZ Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
  • [2008-08-31 11:38]

Hello Pekka,
Excellent photo of this Ruff. Colours, low POV, sharpness, composition, BG look all marvelous. Very beautiful!
Kind regards,
Peter

  • Great 
  • uleko Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3396 W: 172 N: 3310] (10940)
  • [2008-08-31 11:42]

Hej Pekka,
Very beautiful capture of this young Ruff showing clearly the small size of its head. Excellent sharpness and colours and a beautiful composition. We have many waders here now but it is hard to get close to them.
TFS and cheers, Ulla

  • Great 
  • nglen Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2883 W: 30 N: 9683] (36145)
  • [2008-08-31 11:45]

Hi Pekka, This is a first class close up of this elegant looking bird. which you have captured with fine detail and natural colours. The wing markings show up so well. TFS.good notes too.
Nick..

  • Great 
  • mariki Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 838 W: 60 N: 2307] (9477)
  • [2008-08-31 13:04]

Hello Pekka,

Splendid sharp picture of this bird. Excellent POV and DOF. Very good composition. Excellent constrast against the light background. Superb light and colours.
Cheers,
Mariki

  • Great 
  • joey Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1739 W: 224 N: 6872] (24909)
  • [2008-08-31 13:20]
  • [+]

Very detailed image of this Ruff.
Great exposure and light.
Brilliant low-down POV.
Superb composition.

Very well done, Pekka!

Joe

p.s I hope the mud wasn't too bad ;-)

  • Great 
  • Jamesp Gold Star Critiquer/Gold Note Writer [C: 1369 W: 9 N: 6334] (18906)
  • [2008-08-31 23:41]

Hi Pekka

Excellent work - you seem to achieve these shots with such ease! This is now not so common here as a breeding bird, but, apparently a few do breed on the Ouse Washes near me.

James

  • Great 
  • efsus Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 415 W: 11 N: 843] (3947)
  • [2008-09-01 1:11]

Merhaba Pekka,
Oldukça güzel çekilmiş ve detayları enfes ortaya konmuş bir kuş fotografı. Eline sağlık.
Hüseyin

  •      
  • gannu Gold Star Critiquer/Gold Note Writer [C: 988 W: 4 N: 3277] (14761)
  • [2008-09-01 9:56]

Hello Pekka, Fantastic view and great clarity shot. Superb atmosphere. Ganesh smiley tmrw

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