What you can tell from feathers:

[Aly]

Spike posted an intresting article on another thread about molting which got me reading into more things. Here is another great link.http://birdtoyoutlet.com/bird-safety/article-things-you-can-tell-from-feathers.htm The main things that I learned are about stress bars (which I didn't know about). Here is spike's link. http://www.cockatiels.org/articles/care/molting.html

[Bea]

Interesting article! :D

[Laura]

very interesting I learnt something new :D

[olly&izzy]

wow Great info, thanks

[xxxSpikexxx]

Good link about stress bars. Spike has a weird orange/brown spot on his new tail feather. I think it is from climbing the cage bars, He also dunks his tail in his water dish alot as well. I should try and get a photo sometime.

[birdieness]

You notice these stress bars in larger birds a lot. Larger birds like macaws also get this moth eatin look.

[Sophia]

Thanks for the interesting Facts :D:D:D:D:D