Technically it is a halfsider. Another term in Chimera. The name halfsider should really be dropped as by reference it gives the person a visual image of a bird that is delineated down the centre and is different on each side. Chimeras are genetically all the same but the visual component will vary. Genetically this bird is Spangle and Greywing but the colour is another issue. Phenotypically he is Green and Blue with a Grey factor on the green section. The bird was more then likely going to be a Grey Green split for Blue but then "glitch" as nubbs puts it occoured causing the blue to be visual rather than hidden. If the bird is a true Chimera it will contain both sets of chromosomes. Only way to know is by breedig or DNA typing. DNA typing unfortunately is not an option as the genenome needs to be mapped first in order to know where to find the particular sequences your looking for.

 

An good example of a Chimera can be found in the Western Australian Thoroughbred (TB) racing industry. A stallion called Catch A Bird was born with the most unusal markings and it was always thought he was a brindle with what was called "Birdcatcher Spots". The spots vary enormously from just a few to so many that they join to look like stripes. This stallion stood at stud and produced 4 Roans, the only time roans have appeared in TB's. Roan is a dominant gene in horse and so it was a bit of a pickle as where it had orignated from as the stallion was a bay. Many years down the track he was DNA typed and found to have two sets of chromosomes. So he can produce bays in his image or he can produce roans. He has never passed on his spots however.

Edited February 2, 201114 yr by RIPbudgies

The horse you speak of Catch a Bird

 

 

 

http://www.horsegroomingsupplies.com/horse-forums/roan-thoroughbred-353087-3.html

 

Now deceased http://www.horsegroomingsupplies.com/horse-forums/horribly-sad-news-catch-bird-has-passed-142042.html

Edited February 2, 201114 yr by **KAZ**

The horse you speak of Catch a Bird

 

 

 

http://www.horsegroomingsupplies.com/horse-forums/roan-thoroughbred-353087-3.html

 

Now deceased http://www.horsegroomingsupplies.com/horse-forums/horribly-sad-news-catch-bird-has-passed-142042.html

 

That be him. I got those photos but didn't have the time to scan and upload. I also have photos of two of his roan daughters called Odd Colours and Slip Catch. On Monday I went down to Larkhill Trials to catch up with the trainer of Slip Catch's daughter, Lavender fields, who is a roan also. Got a few nice pics of her and will going down to the property to get some more pics of her before she heads back to the owner as she ain't gonna make a very good racehorse. I will be cathing up with the breeder and hope to get more photos of Catch A Bird and his daughters.

 

That forum discussion states that Catch A Bird was the only brindle TB which after his DNA typing was proven to be incorrect and Brindle horses have a different hair growth in the bridle area and Catch A Bird did not have that. 'Birdcatcher Spots' have nothing to do with brindle inheritance.

 

The TB studbook does not allow for odd coloured horses and in fact Lavender Fields is listed as bay making it very hard to track back with these things. One has to reply on extra info written elsewhere.

Edited February 2, 201114 yr by RIPbudgies

I was interestd in the topic, and I found some more info:

 

Forum Discussion:

http://www.horsegroomingsupplies.com/horse-forums/roan-thoroughbreds-282982-1.html

 

Assorted pictures of Catch a Bird:

http://www.angelfire.com/on3/TrueColoursFarm/CatchaBird.html

This is a picture of Slip Catch's progeny, Lavender Fields.

 

Edited February 2, 201114 yr by RIPbudgies

This is a picture of Slip Catch's progeny, Lavender Fields.

 

 

ooh wow is she (assuming she's a she by the name) a Buckskin Roan? She's gorgeous! I

So ....the upshot of all this is....

 

My bird is a halfsider also known as a chimera ?

uuummmmmm....yes -

uuummmmmm....yes -

yeaaaaaaaaaaaaaaaaaaaaaaa finally back to the birds :}

yes i think it is kaz :}