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Post by jave*finch* on Jul 21, 2009 11:33:54 GMT
Hi Ely, CONGRATS! Really great capture! I've also seen that bird in Caylabne/Palay-Palay but don't have any pics. I also remember the discussion on this bird in the WBCP egroup .. they usually refer to it as a White Morph Coucal. Also found this in the WBCP egroup: "The term "phase" in its' most correct acception refers to transitional, and temporary plumages that are age-related. A "morph" is a described and recognised plumage variant of adult birds. A white "morph" will live and die a white "morph" and, it is not transitional." Thank you Dave. This quote came from our lovely lady member "Sylvia Ramos" who is also a member of the WBCP. This is the only thing that I know of the Philippine Coucal "White Morph". As for the camera I would suggest that you get a Canon 50D and a 400mm 5.6 L lens. This is what Sylvia is using and she takes good pictures with it. Another lady member who is very proficient with it is "Tina Mallari". I am relatively a beginner in bird photography so I will leave this page open for the experts to make their recommendation to you. You are very young and this would be a good way to start with your hobby and perhaps help you in your desire to take up ornithology. As a finch breeder. occurrences like these are called color mutations, but since I'm not with breeders, the correct term is morph? If it is a naturally occurring color in the specie, most probably, the genetic inheritance of the color form is recessive, which means the color form only comes out if the parents are both white or if the parents are white morph by normal morph with white genes. This means, the white form really is rare.  I feel so lucky seeing one of these birds. I hope to encounter one when I get a camera. Dave. |
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Post by Nelson Khor on Jul 27, 2009 12:19:11 GMT
Beautiful while, our side is brown and black color
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Post by Ely Teehankee on Jul 29, 2009 1:58:58 GMT
Hi Ely, CONGRATS! Really great capture! I've also seen that bird in Caylabne/Palay-Palay but don't have any pics. I also remember the discussion on this bird in the WBCP egroup .. they usually refer to it as a White Morph Coucal. Also found this in the WBCP egroup: "The term "phase" in its' most correct acception refers to transitional, and temporary plumages that are age-related. A "morph" is a described and recognised plumage variant of adult birds. A white "morph" will live and die a white "morph" and, it is not transitional." The Coucal is probable the equivalent of your brown & black bird that you described. This is the same species as that bird but a variant that has changed ("Metamorphosis") from that color to white. The above quote may be helpful to understand the nature of this bird. Thank you Nelson for your comment. |
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Post by Elvin Sansona on Jul 30, 2009 10:27:59 GMT
To further give you ideas guys,
"phase" - change of color depending on environmental (externally-induced change) or physiological (internally-induced change) factors. But this change is temporary and will be expressed when factors are present. For example the ptarmigan which turns white during winter and will change to brown during summer.
"morph" - genetic in nature and the white color will prevail until the bird signs off to eternity. Take the case of common fighting cocks, the white morph is common called "ugis" in bisaya, born white and die white.
Hope this help...
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Post by Elvin Sansona on Jul 30, 2009 10:37:57 GMT
The occurrence of this white morph is still hanging in the air as to the cause. Is it sex-linked? (males only or only females show the white morph). It is a recessive trait? (Expressed only when the parents carry the genes). One should lead the way to give us answers...this is a good PhD study....
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Post by steve pryor on May 12, 2012 9:00:45 GMT
Resurrecting an old thread because of the other thread having the white coucal.
Just a couple of considerations. The color of the iris in the normomorph C. viridis ranges from red to brown. The ocular skin is normally greyish, as can be seen here.
Generally speaking it is improper the use of the term "albino" for animals other than humans.
As far as when to use the two not interchangeable terms, morph, and phase as applied to bird plumages, well, there has been a long-standing improper use of the terms even by those writing about birds. It should be implicit within the word "phase" itself the concept that "phase" should be used properly only when speaking of transitory plumages, and the most common place where the term might be used is within bird species that have seasonal moults leading up to, and following from the assumption of mating plumages.
As far as the bird above, this is a white "morph"! To say that a bird species can possess permanent plumage color schemes besides that of the normomorph means that there exist adult birds that assume a non-normomorphic plumage scheme that is permanent! A morph will not change plumages, i.e., it is not a phasic and transitory plumage.
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Post by Ely Teehankee on May 13, 2012 20:48:24 GMT
Resurrecting an old thread because of the other thread having the white coucal. Just a couple of considerations. The color of the iris in the normomorph C. viridis ranges from red to brown. The ocular skin is normally greyish, as can be seen here. Generally speaking it is improper the use of the term "albino" for animals other than humans. As far as when to use the two not interchangeable terms, morph, and phase as applied to bird plumages, well, there has been a long-standing improper use of the terms even by those writing about birds. It should be implicit within the word "phase" itself the concept that "phase" should be used properly only when speaking of transitory plumages, and the most common place where the term might be used is within bird species that have seasonal moults leading up to, and following from the assumption of mating plumages. As far as the bird above, this is a white "morph"! To say that a bird species can possess permanent plumage color schemes besides that of the normomorph means that there exist adult birds that assume a non-normomorphic plumage scheme that is permanent! A morph will not change plumages, i.e., it is not a phasic and transitory plumage. Thank you Steve. That settles it is not a phase but a morph and the plumage will stay for the rest of its natural life. |
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Post by Bobby Kintanar on May 14, 2012 12:16:30 GMT
Wow, that is a very rare photo indeed. If I remember right, Plain Idol Tina also has one - but that was taken some years back! Big Congrats Ka Ely!! :-)
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Post by Ely Teehankee on May 14, 2012 13:22:30 GMT
Wow, that is a very rare photo indeed. If I remember right, Plain Idol Tina also has one - but that was taken some years back! Big Congrats Ka Ely!! :-) Thank you Bobby. Tina made a comment on this thread. This thread was started on July 10, 2009. You are right, it is so rare that you seldom see it but not as rare as the Cebu Flowerpecker that you have seen a couple of times. |
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I feel so lucky seeing one of these birds. I hope to encounter one when I get a camera.
