Related pairs

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Has anyone ever read anything about this occurring naturally? It seems so wrong and un natural to me but I do often wonder if left completely undisturbed wild animals ever do this...
 
Thank you Wendy! That's part of the point I was trying to make with the studies!
 
Inbreeding is rampant in nature. Remote islands are often populated by weakly-flighted birds (contrary to logic, perhaps) in small numbers, which then become flightless over time in the absence of predators. There is even a flightless fly on Macquarie Island (an Oz sub-Antarctic island)- the ancestors made it there and then found it was safer to jump from plant to plant rather than try to fly- as it's windy they'd be blown away. "Founder effect" is important too- feral cats only made it to Lord Howe Island from shipwrecks and those I saw there in 1990s were mostly black.

I have a pair of lutino pearl cinnamon 'tiels which came from a cage of about 20 at a bird shop- they look very similar to each other, they've bonded but female has not laid eggs. I worry they are related - even siblings. I had hoped our Pavarotti would choose the female from the other pair but he chose his current partner, Pavarotti and his lady came from bird shops 100km apart.
 
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"I never meant to staaarrrttt a waaaaaarr!!" *Sings Miley*
 
"I never meant to staaarrrttt a waaaaaarr!!" *Sings Miley*

LoL.....

I came in like a wrecking ball......

All you ever did was break me. Yeah, you wreck me.... :D
 
Hehe i was going to continue with more but it didnt seem quite as appropriate as that line XD
 
You had the perfect line!!!!!!! lol
 
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