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Discussion Starter · #1 ·
well most of us know about halfsiders right?...
where a bird has one mutation show on one side, but not on the other...

well there are many theories as to why this happens, most people have so far chalked it down to 'twins' that joined in one egg... but really its a rare and misunderstood phenomenon....

halfsiders dont seem to pass on their genetics to their offspring, which leads us all to believe that it isnt an inheritable genetic mutation at all... either a 'one off' mutation or a 'twin' or something type situation....

so... now what i found out the other day blew me right out of the water....

i have a friend who breeds lovies.... he has a pair that are both blue mutation halfsiders(one side blue/white and the other green/yellow)... and from their 2 clutches they have had so far, they have produced 100% halfsiders!!!

so what the bleep is going on here?... is halfsiders some weird kind of mutation with the genetic inheritance unknown? i cant work it out... neither can he...

im not really supposed to be telling people, so i wont mention his name or where he lives or anything like that... he is worried that it might be some kind of freak accident... but the thing is, out of 7 babies from this pair they have all been halfsiders so to me there is something more than just 'fluke'.... it probably wont come to light for another few years as he only lets them have one clutch a year, and the first babies are only a year old at the moment, and before he releases his amazing new find, he wants to testbreed from the offspring to try and determine the genetic inheritance if any.... anyway, i may be getting a pair from him as he dosent want to limit a possible new mutation to a single aviary, and end up with a 'wipeout' like what happened to the blackface budgies... but if that happens or not, im not at liberty to tell people...

anyway, sorry for this being not really budgie related... but yeah... exciting days...
 

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if anyone finds out they will probably offer him tons of $$$ for a half sider budgie! hahah... good for him! i hope you get one and post tons of pics!!!!
i've always wanted a halfsider thats so cool!

:)
 

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Discussion Starter · #4 ·
if anyone finds out they will probably offer him tons of $$$ for a half sider budgie! hahah... good for him! i hope you get one and post tons of pics!!!!
i've always wanted a halfsider thats so cool!

:)
thanks!... but yeah they are lovebirds sorry... maybe i should have posted in the other birds section, but i kinda felt it was more of a genetic colour thing, as if this works, it may well become transferable between species...

and i would love to post piks if i get them, but i have sworn to him that i wont reveal any solid news to the public before he does :p ... and it kinda stinks, but he has put all this effort into it, the glory belongs to him :p (i will ask if i am allowed to post piks of the parents) anyway, i dont know what i will be getting if anything, im sure he will want me to have one or two, but you cant breed them together obviously, that would be stupid, so if i want to breed them (which would be the only reason he would give me some of the babies- to not put all his 'eggs in one basket' so to speak) i would have to get another few to pair them with... also to be on the lookout for another halfsider to mix in with them...

but as he said, 'there is no guarantee this hasnt just been pot-luck for me to get these 7 babies as halfsiders, and we dont know if it really is transferrable, and untill we do a lot more testbreeding' etc etc etc....

so yeah it could be totally wrong, so its not really news yet, just suspicion lol...
 

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this is really cool... im not really into the mutations... but wow... you can actually get a bird that has one color on one side and another on the other side... thats bizzare :D... im looking for some pictures right now to see how it looks like.. cant seem to find any :)... does the colour split only go verticaly.. or can it also go horizontaly..like the top part of the body is green and the bottom part grey...

half sided love birds.. if he does allow you to you should definately post a picture... its just so retro... hehe...
 

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be away that thesse birds being a halfsdiers is a deformatiy alot like feather dusters
they can get picked of pretty easily by other birds, i wouldnt incourage the breeding of them, they are very beautifull
 

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I have info on this but not based on birds, but based on humans. It is called chimerism or the person is called a chimera based on the mythical creature http://en.wikipedia.org/wiki/Chimera_(mythology)

So basically the person has two sets of DNA, so they are two people in one. Most cases you can visually see this like a baby is born with half their body having dark skin and the other half having light skin or even having both male and female reproductive parts. There have been 2 cases that I know of where the person has no visual traits, but when tested for DNA her blood DNA did not match her children that she conceived and gave birth to, but her organs DNA did match.

Here's a couple more links explaining how it happens:
http://www.medterms.com/script/main/art.asp?articlekey=8905

http://genetics.suite101.com/article.cfm/chimeras

I saw a TV show about this and was amazed...I am really not sure if it can relate to these half-sider budgies and other birds, but I found it interesting so I thought I would share!
 

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Discussion Starter · #9 ·
For pictures of budgie halfsiders, go to this website and then scroll down almost to the end of the page.
http://images.google.de/imgres?imgu...&um=1&hl=de&safe=off&rlz=1G1GGLQ_DEDE311&sa=N

Sigrid
the bit about halfsiders says all about chimerism...
and i dont think its a colour mutation as such, but im just wondering if it is like twins, where there is a gene in there somewhere that depicts how much chance you have to pass that gene along, how twins often end up having twins...?

and what kind of inheritance that gene has?....
 

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If half-siders are more of a twin thing like chimerism and not a mutation..then I would think that there must be something that gets passed along to make it happen more often or something...especially with what happened with your friend's lovies! It must be something like how twins are more likely to have twins, but then there are times when it skips a generation. Your friend will have his hands full figuring it all out...years of research!
 

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Wow. Very cool. Good luck to you and your friend with figuring this out and all the breeding that's going to go into it.
 
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