(delhibirdpix) sorry forget to attach the picture.resending with picture ruff of diff.plumage

dear friends,

 resending .

thanks

----- Forwarded Message -----
From: jaysukh parekh <nisusuman@yahoo.co.in>
To: "Walens, Stanley" <swalens@ucsd.edu>; "orientalbirdingpix@googlegroups.com" <orientalbirdingpix@googlegroups.com>; "delhibirdpix@googlegroups.com" <delhibirdpix@googlegroups.com>
Sent: Monday, 14 January 2013 5:41 PM
Subject: Re: [OBPix] Re: (delhibirdpix) Ruff breeding plumage?please help.

Dear Stan,Clive Mann,and other friends who had reply in this concern.

 

I had tried to serch about this picture and melanistic birds.

sending link about the term melanistic(for new comers and for them who dont know about this).

http://birding.about.com/od/identifyingbirds/a/melanism.htm

 as i understood (perheps) dark morph term is described due to dark colour of bird due to some excessive melanin. if someone has less time and less intrest pasting some important detail.(Melanism, or melanosis, is a condition caused by a genetic mutation that gives a bird excess amounts of melanin in its feathers. This makes the feathers much darker than normal plumage, and many melanistic birds appear completely brown or black. There are two ways melanism can affect birds' plumage:

Normally dark markings are bolder and noticeably "overrun" their typical boundaries

• All the plumage is darkened and appears dark brown or black

Just like with leucism, melanism can vary for different birds and some individuals will show much darker plumage than normal, while other birds will have less noticeable changes in their coloration, particularly if they already have dark markings.

Dark Morphs and Melanism

While a true melanistic bird is rare, many bird species have regular color morphs that show some degree of melanism. This creates a dark morph variation of the bird's typical plumage, and birders can learn to recognize the most common of these birds without difficulty.

 

so can we tell this picture as ruff dark morph? or what we can say? humble request to friend to send their opinion about this.

in reply to your thinking of oiling of bird enclosing picture in which we can see all the feathers.see tail particularly if tail is oiled all the three portion of tail should have black of same colour.see the side back feathers which are dullar or lighter then nearer feathers.

see shaft of the feathers which are at the base of leg.shaft line can seen clearly same way

side back(wing ) feathers clearly indicates that they are not coloured with some oil or other chemicals.

the behaviour of this bird was quite o.k. was little much agile perheps as i was capturing the pictures was flying away quickly.all the part of body also seems similar to regular bird.

dear friends,this is my thinking i may be wrong but i hope you will help to clear the matter.posting other pictures of different angle with this.thanking you all.

suman

From: "Walens, Stanley" <swalens@ucsd.edu>
To: "orientalbirdingpix@googlegroups.com" <orientalbirdingpix@googlegroups.com>; Delhibirdpix <delhibirdpix@googlegroups.com>
Sent: Monday, 14 January 2013 1:47 AM
Subject: Re: [OBPix] Re: (delhibirdpix) Ruff breeding plumage?please help.

Suman,
I'm no expert on ruffs, but there is more to this bird than its not having head-plumes yet.
I'm not even sure it is a male.

Ruffs should have brown, chestnut and white in various parts of their plumage [wings, back, tail, body, etc.], even if they are black-colored males. Also should have white bellies.
Given that this bird is basically unicolored black and has an all-black bill, I'd say that it either is oiled or, more interestingly and to my mind more probably, melanistic.

More pictures would be very interesting.

Stan Walens
San Diego, California, US


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