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Black-capped Chickadee Albinos


Black-capped Chickadee Albinos
Información de la foto
Copyright: Donald Lapointe (hibou) Gold Star Critiquer/Gold Note Writer [C: 217 W: 1 N: 331] (1629)
Género: Animals
Medio: Color
Tomada el: 2007-02
Categorías: Birds
Cámara: Nikon D100, Sigma 50-500 F/4-6.3 EX HSM
Versión de la foto: Versión original
Tema(s): Albinism and leucism [view contributor(s)]
Fecha enviada: 2007-02-24 17:56
Vista: 5831
Favoritos: 2 [Ver]
Puntos: 36
[Normas para las notas] Notas del fotógrafo [Francés]
Albinism is passed genetically from parents to offspring. Each cell contains numerous pairs of genes, one from each parent. These genes transmit traits through generations. An albino offspring results from a specific combination of genes.
Albinos are infrequent because the genes for that trait are recessive, while the genes for normal pigmentation are dominant. If both are present, normal pigmentation occurs. If only recessive genes occur, albinism may result. Only a small percentage of animals carry the recessive gene, so the chance of the pairing of recessive genes in an individual animal is slight.
At least 300 species of animals in North America have albino individuals. The degree of albinism varies among animal groups. Some researchers working with mammals estimate that true albinos occur in about one in 10,000 births. Some of our Conservation Department hatcheries have seen albino catfish produced as frequently as one in 20,000 fish. Yet some researchers working with birds found that albinism occurs in 17 of 30,000 individuals, or one of 1,764 birds.
Although it seems logical that albinos would have a survival disadvantage, some studies suggest that albino animals may not be as conspicuous to other predators as they are to us.
Predators such as hawks, for example, may rely on a search image for prey that primarily involves shape and movement. The color of the prey may make little difference, as long as the prey looks and acts like a food item.
A lack of pigmentation can, however, affect the vision of albino animals, making it hard for them to find food and avoid danger.
All About Albinism
by John D. Miller
http://mdc.mo.gov/conmag/2005/06/10.htm

JoseMiguel, lovenature, jhm, ramthakur, jaycee, Debz, RAP, chouette ha puntuado esta nota como útil.
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Para EOSF1: ce n'est pas un moineau mais ...hibou 1 10-16 16:49
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Critiques [Translate]

Bonjour Donald,
Great capture of this albine Chickadee.
I like the pose catched and the effective use of the DOF.
The central composition makes us admire in its full lenght all the bird's details.
Congratulations and thanks for share.
My best regards,
JM

  • Great 
  • Nilson Gold Star Critiquer/Gold Note Writer [C: 487 W: 0 N: 565] (4413)
  • [2007-02-24 19:01]

Belo passaro,bela foto,esta de parabéns por esta imagem muito agradavel,gosto de fotos de perto e essa ficou muito boa ao meus olhos.
NIlson

A very nice shot of a very rare bird! I love chickadees, and I find it very interesting to be able to see this albino chickadee! Very nice details, and good composition :)

TK

Wow! What a great capture Donald.
You don't see an albino chickadee everyday. I'm sure he loves the winter months as he would blend into the snow so well. In the summer it would be another story. Lighting, colours and detail is excellent.
TFS Janice

  • Great 
  • Adanac Gold Star Critiquer/Gold Note Writer [C: 1273 W: 1 N: 6188] (21378)
  • [2007-02-24 22:33]

Hi Donald,
Thanks for sharing this great capture of a very unique bird. Your composition and details are spot on, thanks Donald.
Rick

hi donald,
lovely capture of cute little bird,
nice pose captured, finely composed shot, good pov,
tfs & regards
pankaj

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3090 W: 230 N: 6774] (23770)
  • [2007-02-25 1:54]

How interesting, Donald.
You have captured a very rare bird there.
Great POV.
TFS this unusual occurrence and excellent notes on albinism.

  • Great 
  • jhm Gold Star Critiquer/Gold Note Writer [C: 893 W: 0 N: 507] (1853)
  • [2007-02-25 2:42]

Hello Donald,

Thanks for your interesting note, I've again something learned today.
I see this bird for the first time!
I like the pose catched and the effective use of the DOF. Excellent picture and I look with very much pleasure!

Regards,
John

bonjour DONALD
BRAVO POUR CETTE jolie petite mésange, je ne connaissais pas celle a tête noire, tres jolie aussi, tres bons détails
bravo et merci
edith

Hello Donald,

excllent colors Bg POV DOf perfect detail svery crisp nicly vomposed and captured photo wel done

TFS Kyle

Thanks for showing us an albino Chikadee, Donald. Your note explains the phenomenon very well.
The image is very attractive and brings out the characteristics of this bird vividly.
Thanks for sharing your very informative image and note.
Ram

  • Great 
  • jaycee Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2461 W: 10 N: 8044] (25460)
  • [2007-02-25 11:48]

Hi Donald,

Beautiful shot of a very unusual bird. The pose is marvelous and the white is wonderful against that BG. I find the beak fascinating.

TFS

Jane

  • Great 
  • Debz Gold Star Critiquer/Gold Note Writer [C: 505 W: 0 N: 847] (3307)
  • [2007-02-25 12:02]

Great capture of this pretty bird. Nice focus and feather detail. I like the POV and the soft background.

TFS
Debz

  • Great 
  • RAP Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2524 W: 345 N: 2373] (7405)
  • [2007-02-27 7:58]

Delicate and beautiful capture Donald with pleasant point of view and composition.

I like it a lot: composition, POV, DOF, focus, sharpness, colors, lighting, background, framing.

I like it: white balance, notes.

I don't like it: the lack of the values of the image.

The appropriate out of focus collaborates with the aesthetics of the presentation.
Thank you and greetings... Ricardo

Bonjour Donald,
Je vois que vous avez fait connaissance avec Colombine! On dirait un petit ange! Votre photo est très réussie avec cet arrière-plan foncé qui la met en valeur. Les détails et la profondeur de champ sont excellents. Beau travail. Merci de partager!

Quel oiseau impressionant, très belle compostion, bg superbe.
Bravo
Marie

  • Great 
  • jossim Gold Star Critiquer/Gold Note Writer [C: 1538 W: 5 N: 2240] (12636)
  • [2007-06-19 22:17]

Tu as eu bien de la chance de rencontrer un oiseau aussi rare et de pouvoir le prendre en photo,surement un bon moment pour toi.
Félicitations.
Joseph

  • Great 
  • EOSF1 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1393 W: 119 N: 5267] (23955)
  • [2007-10-04 18:01]
  • [+]

Incroyable Donald, ce n'est pas un oiseau que l'on rencontre à tous les jours et tu l'as capturé comme si c'était un moineau ! :-) Quelle belle photo, une superbe réussite. Bravo !

Mario

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